baber/WOPTO huggingface dataset:
Patent GB-333151-A (GB)
Title: Improvements in cigarette tobacco feeding method and machine
IPC: A24C5/39
Filed: 1929-02-02
Abstract: 333,151. Marks, Sir G. C., (American Machine & Foundry Co.). Feb. 2, 1929. Cigarette-making machines.-In a continuousrod machine, tobacco is fed by progressively forming a sheet of tobacco from a mass of tobacco on a feeding element or drum and correcting variations of density in the tobacco sheet by bringing it into contact with a substantially free and uncompressed auxiliary mass of tobacco, so that the variations will be corrected by the addition or removal of tobacco. In the machine shown, tobacco is contained in a hopper 10 having a pivotally adjustable rear wall 16, a carded feed drum 17, and a filling drum 18. For correcting variations of density in the sheet of tobacco on the drum 17, an auxiliary supply of tobacco is maintained between a second filler drum 19 and the drum 17. The tobacco then passes under a spring-pressed comb 23 and is showered by a picker roll 25 against a vertical glass wall 27 and rebounds on a limited portion of the periphery of a feed drum 20 co-operating with a comb 24 and a picker roll 26, by which the tobacco is showered into a delivery chute 28. The tobacco is pressed on the feed drum 17 by independently movable heavy tampers 29 alternately lifted and lowered by chains 80, the upper links of which ride on a shaft 81 supported at its ends in cranks on rotating shafts 83. The layer of tobacco is levelled off by oscillating rakes 32 on a shaft 33, which is oscillated by means of an arm 87 connected by a link 88 to a crank 89 on the shaft 83. Rotating rake elements 34 on a shaft 35 enter between the oscillating rakes 32 when the latter are in their rearmost position. ,The tobacco is thus rotated slowly in contact with the drum 17. The picker rolls 25, 26 and wiper rolls 21, 22 are driven from an electric motor through belt gearing. The remaining parts are driven from the main drive of the cigarette machine, or from a separate motor, through sprocket &c. gearing.
Patent GB-569407-A (GB)
Title: Resinous copolymers
IPC: C08F18/20
Filed: 1942-03-18
Abstract: A 2-halo allyl ester of a saturated monocarboxylic acid is copolymerized with a conjugated butadiene.  Esters specified are 2-chloro- and 2-bromo-allyl formate, acetate, propionate, levulinate, 2-ethyl butyrate, 2-ethyl hexoate and chloro - acetate.  Butadienes specified are butadiene-1,3. isoprene and 2,3-dimethyl butadiene-1,3. Polymerization is effected in aqueous emulsion in the presence of a catalyst, e.g. sodium perborate, a buffer solution, e.g. disodium hydrogen phosphate and citric acid, an emulsifying agent, e.g. of the sodium lauryl sulphate type and carbon tetrachloride, at 30 DEG  to 80 DEG  C.
Patent GB-536994-A (GB)
Title: Improvements in or relating to trough reflector fittings for use with linear light sources
IPC: F21S8/06
Filed: 1940-02-28
Abstract: 536,994. Lamps with trough-shaped reflectors. STUDHOLME, J., and BENJAMIN ELECTRIC, Ltd. Feb. 28, 1940, No. 3651. [Classes 75 (ii), 75 (iii) and 75 (iv)] A trough lighting-unit for use with one or more tubular, preferaby fluorescent, lamps comprises a housing A for control accessories such as chokes, condensers and switches, a rigid longitudinal member or box B supporting the housing and serving as a wiring channel, and a troughreflector C detachably secured to the member B. The construction enables the component parts to be conveniently stocked or transported. The preferred construction comprises also the following features:-The housing A is secured by screws to the box B, and the accessories are mounted on the bottom of the box and project through an aperture 1, in the top. The reflector C is connected to the box at the ends and middle the end connections consisting of wing-nuts 5b, Fig. 2 (not shown), and the middle connection consisting of a pivot-stud mounted on the reflector and engaging a key-hole slot in the box, or vice versa. The lamps are supported by feltlined hooks 6a which are connected by hinges 7 to the box. The ends of the lamps are covered by reflector-plates 8 having felt strips 8c and lugs 8d for engaging the lamps, and slots 6c in the hooks 6a respectively. The unit is suspended from rods 10 each carrying a dished washer engaging a stirrup 11 which is formed with slots 11b for engaging screws 14 on the box. Chainlugs 15 are also provided.
Patent GB-1456370-A (GB)
Title: Microwave attenuator
IPC: H01P1/22
Filed: 1973-01-24
Abstract: 1456370 Attenuators DECCA Ltd 25 March 1974 [24 Jan 1973] 3693/73 Heading H1W A microwave attenuator comprising a length of planar transmission line has adjacent and parallel to the line a film which is substantially entirely resistive at the frequencies at which the line operates, and the transmission line has a conductive track on one face of an insulating substrate, the film being on the same face with the conductor passing over it. As shown, a substrate 1, e.g. of alumina, has the ground plane of the line on one face. The other face carries a resistive film 3, e.g. of chromium, and a strip 2 deposited over film 3. Film 3 is symmetrical with respect to the strip 2, has the shape of basally juxtaposed trapeziums or isosceles triangles, and is shaped to provide a required variation of attenuation with frequency.
Patent GB-372750-A (GB)
Title: Improvements in or relating to wireless alarm devices suitable for use on ships
IPC: G08G3/02
Filed: 1931-02-05
Abstract: 372,750. Locating sounds. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London, and APPLETON, W. A., 189, Wembley Hill Road, Wembley, Middlesex. Feb. 5, 1931, No. 3729. Drawings to Specification. [Class 118 (ii).] An alarm device suitable for use on ships during fog comprises a wireless transmitter and receiver and automatic means for actuating each in succession in a predetermined way, means being also associated with the transmitter to enable the wireless transmission of the sound of the ship's syren, which enables the distance between transmitting and receiving ships to be determined by noting the time interval between the reception of the wireless and acoustic signals. The mechanism controlling the wireless transmitter may also control the syren and if the wireless signals-are sent at known intervals.they may be used to time the interval giving the distance. These wireless signals may comprise a series of different notes.
Patent GB-193396-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B3/06
Filed: 1923-02-08
Abstract: 193,396. Worthington Pump & Machinery Corporation, (Assignees of Jorgensen, O. E.). Feb. 16, 1922, [Convention date]. Cylinders receiving liquid fuel. - In a double-acting Diesel engine the upper and lower cylinder parts are supported by a base B carried on the main frame. The base has scav. enging-air inlet and exhaust passages 5 6 divided by webs t and registering with ports in the liners 2 The liners and barrels 1 are thickened at the base end and rest on the webs, being held on by clamping rings D. E a c h combustion chamber is formed in part spherical and in part conical. The upper and lower water jackets C, C' rest on the clamping rings D and are bolted to thimbles 10, 11 on the cylinder ends. The upper fuel-injection valve 58 and a compressed-air starting valve are, mounted in a chest 12.
Patent GB-897906-A (GB)
Title: Portable electric drill
IPC: B23B45/00
Filed: 1960-02-03
Abstract: 897,906. Portable drilling-machines. STAR UTENSILI ELETTRICI S.p.A. Feb. 3, 1960 [Feb. 19, 1959 (2)], No. 3897/60. Class 83 (3). A portable electric-drill has its motor 1 mounted so that its axis 2 subtends an obtuse angle of between 104 and 106 degrees to the axis of the chuck A. The casing of the motor may form the drill handle, or a handle 5 may be secured to the casing so that it is substantially parallel to it. Specification 503,884 is referred to.
Patent GB-672361-A (GB)
Title: Improvements in or relating to valve devices mainly for fire extinguishers
IPC: A62C13/00
Filed: 1950-02-15
Abstract: 672,361. Manually-actuated valves. BIGINELLI, O. F. A. Feb. 15, 1950, No. 3918/50. Class 135. A screw-actuated valve for a fireextinguisher &c. comprises a body 1 having an axial bore 16 screw-threaded at its lower end to coact with a spindle 14 having a conical shoulder 19 bearing against a seat 2 formed at the upper end of the bore and sealed thereto by a ring of solder 30. A removable sealing head 23 placed in position after the making of the soldered joint has a lateral outlet nozzle 27, whilst a lateral neck 7 on the body 1 for the introduction of pressure fluid to the extinguisher houses a loose-ball valve 13 held on a seating ring 11 by the pressure within the extinguisher. The neck 7 is sealed by a screwed plug 32 and a ring of solder 33.
Patent GB-840246-A (GB)
Title: Improvements in or relating to the preparation of 6-methyl steroid compounds
Inventor: CARMICHAEL ANNE SHIRLEY
IPC: C12P33/00
Filed: 1958-02-06
Abstract: 11 - Alpha - hydroxy - 6 - alpha - methylprogesterone is prepared by incubating 6-alphamethylprogesterone with a culture of Rhizopus nigricans under aerobic conditions in a nutrient medium.  The product is advantageously isolated by extraction of the resulting broth with a nonmiscible solvent such as chloroform, ethyl acetate or propyl acetate.  In an example the nutrient medium consists of 5% salt extract and 0.5% peptone at pH 6 and the incubation temperature is 30 DEG  C.  Specification 802,005 is referred to.
Patent GB-712506-A (GB)
Title: Improvements in or relating to machines for cutting slots in the heads of screw and like blanks
IPC: B23G9/00
Filed: 1952-02-15
Abstract: 712,506. Feeding articles in predetermined position. STEINFURTH, L. Feb. 15, 1952 [March 10, 1951], No. 4023/52. Class 117 [Also in Groups XXII and XXX] In a machine for milling or sawing slots in screw heads, &c. (see Group XXII) the blanks B are delivered from a rotating hopper 39 which deposits them between screws 40, 41 from whence they are conveyed to a channel formed by an endless moving band 33 and a fixed bar 32. Any wrongly positioned blanks are removed by a wheel 29. The blanks are then picked up by a toothed wheel 24 and delivered to a slotted drum 12. Reference has been directed by the Comp-  troller to Specification 668,300, [Group XXII].
Patent GB-1110635-A (GB)
Title: Pressure electrical contact assembly for a semiconductor device
IPC: H01L23/48
Filed: 1967-01-27
Abstract: 1,110,635. Semiconductor devices. WESTINGHOUSE ELECTRIC CORPORATION. 27 Jan., 1967 [1 Feb., 1966], No. 4112/67. Heading H1K. Contact is made to two different conductivity type regions on the same surface of a semiconductor device 76 by a pair of electrodes one of which has a tubular portion connected to one of the regions and the other of which is a lead 38 held in contact with the other region by a spring or like resilient member 42 situated within the tubular portion of said one electrode. The tubular electrode portion has an open (lower) end secured to an apertured plate 14 which is part of the contact system of the first region, and a closed (upper) end which provides support for the spring 42. The closure plate 20 at this end is integral with an offset lead portion 46 which provides a flexible link to the terminal 44. A spring system 100 urges the plate 14 on to the semi-conductor so that both the above contacts are of the pressure-held kind, as also is the contact between the device and the base of the device housing 50.
Patent GB-652286-A (GB)
Title: Improvements in vehicle undercarriages
IPC: B62C3/00
Filed: 1948-02-12
Abstract: 652,286. Turntable forecarriages; vehicle wheel arrangements; vehicle body mountings; vehicle underframes. JESSEN, K. A. K. Feb. 12, 1948, No. 4120. Convention date, Feb. 13, 1947. [Class 108(ii)] In an undercarriage for vehicles of the kind that is centrally connected to the vehicle body by means of two supports, one of which is attached to the vehicle body and connected by means of inclined struts to the wheel axle, the other being arranged in or approximately in a horizontal plane through the wheel axle, the latter support is braced in relation to the vehicle body at points substantially spaced from the longitudinal centre-line of the vehicle body. In the arrangement according to Fig. 1, a support 4 rigidly attached to a vehicle body 1 is connected to an axle 2 by a pair of struts 5, and a support 6 rigidly attached to the axle is connected to the body 1 on either side of the axle by pairs of struts 7. In an arrangement, for a rotatable undercarriage, (Fig. 2, not shown) the supports 4 and 6 comprise annular turnplates rotatable on kingpins rigid with the body and axle respectively. In another arrangement, Figs. 3 and 4, a bearing member 17 which is connected to the axle by struts 5 is rotatable about the upper end of a kingpin 12 which is secured to a fixed bearing member 15 rigid with a bolster frame 13. The struts 7 are secured by means of a member 19 to the lower end of the kingpin which is housed in a bearing on the axle. In an arrangement comprising a vehicle having a rotatable forecarriage and a rigid rear carriage, Figs. 5 and 7, the lower supports are interconnected by a perch 20 which is also connected to the bolster frame 13 by pairs of struts 21 and inclined end struts 22. The struts 22 may be braced to the frame 13 by stays 23.
Patent GB-1259888-A (GB)
Title: Improvements in and relating to textile size
Inventor: HEAP VERNON
IPC: C08F20/62
Filed: 1969-08-19
Abstract: 1,259,888. Acrylic polymer salt solutions. ALLIED COLLOIDS MFG. CO. Ltd. 18 Aug., 1970 [19 Aug., 1969], No. 41310/69. Heading C3P. [Also in Division D1] A size comprises a copolymer of (a) acrylic acid and (b) sodium, potassium or ammonium acrylate, the molar ratio of (a) to (b) being from 1 : 0À3 to 1 : 6, preferably from 1 : 0À8 to 1 : 2À6, which as a 5% by weight aqueous solution of the copolymer at 20‹ C. has a pH of 4À0 to 6À5 and a viscosity, as measured by a Brookfield viscometer, of between 20 c.p.s. when using a No. 1 spindle and 4000 c.p.s. when measured using a No. 6 spindle, the spindle speed in both cases being 100 r.p.m. The copolymer may contain units of a third comonomer.
Patent GB-1514732-A (GB)
Title: Opening roof for vehicles
IPC: B60J7/185
Filed: 1975-05-13
Abstract: 1514732 Vehicle roof operating mechanism EDWARD ROSE (BIRMINGHAM) Ltd 13 May 1975 [13 Feb 1974] 04197/78 Divided out of 1514731 Heading E2M [Also in Division B7] The opening roof assembly is as described in Specification 1514731 but the claims relate to the construction of the operating means 16. Springs 31 are interposed between the sleeves 29 and respective housings 30 to compensate for manufacturing tolerances in the vehicle roof and inaccuracies in the mounting of the assembly.
Patent GB-1494230-A (GB)
Title: Process for the purification of alkali metal or ammonium insulin
IPC: C07K14/625
Filed: 1975-01-30
Abstract: 1494230 Insulin ELI LILLY & CO 30 Jan 1975 4200/75 Heading C3H A process for the purification of alkali metal insulin or ammonium insulin comprises swelling a gel having in the dry state a water-regain of at least 4% by weight and particle diameters less than 100 microns with an aqueous medium; packing a column with said swollen gel, adding to said packed column an aqueous solution of an alkali metal insulin or ammonium insulin of purity at least 80% wherein the pH of the solution is 7À5-9À5, the alkali metal insulin or ammonium insulin concentration is 1-8%, weight per volume and the total amount of alkali metal insulin or ammonium insulin is sufficient to provide a column loading of 0À8-6À7 g/litre of bed volume; and eluting the alkali metal insulin or ammonium insulin from the column at 5-30‹ C. with an aqueous eluant having a pH of 7À5 to 9À5. In the example, beef sodium insulin is purified on cross-linked dextran gel with aqueous sodium hydroxide. The alkali metal insulin or ammonium insulin may be converted into zinc insulin.
Patent GB-1533637-A (GB)
Title: Thermal treatment of used petroleum oils
IPC: C10M175/00
Filed: 1976-02-03
Abstract: 1533637 Treating used lubricating oils WITCO CHEMICAL CORP 3 Feb 1976 [24 April 1975] 04204/76 Heading C5E Used engine oils are heated at 400-800 F. under a pressure of 500-3500 p.s.i.g. and the sludge formed is separated from the oil. Used crankcase oils are treated, batchwise or continuously, by heating under autogenic pressure or using nitrogen as a pressurizing gas. Sludge is separated by centrifuging and the oil is then distilled under vacuum to remove water and light ends and to separate a middle lubricating oil fraction from an impure residue. The distilled oil is hydrotreated using a catalyst of cobalt and moybdenum or of nickel and molybdenum on alumina.
Patent GB-1062211-A (GB)
Title: Improvements in transistorised voltage actuated devices
Inventor: BARANY THOMAS ERNEST
IPC: H03K3/2893
Filed: 1963-02-01
Abstract: 1,062,211. Transistor switching circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 31, 1963 [Feb. 1, 1963], No. 4310/63. Heading H3T. A voltage threshold detector comprises a bi-stable circuit with two transistors T1 T2 connected as a long-tailed pair with a common emitter resistor R5 and separate resistive collector loads R6, R7, a variable resistor R8 connecting the output of the second transistor T2 to the base of the first transistor T1 so that the circuit changes quickly from one stable state to the other and the magnitude of the differential between the actuating voltages required to switch over the bi-stable circuit in one direction or the other is determined by the variable resistor R8. The terminerals N, E, P are connected to a D.C. source at - 36, earth and + 50 volts respectively. The negative actuating voltage is applied through resistors R18, R3 to the base of transistor T1 in opposition to a positive voltage derived from the positive supply line through resistors R2, R4 and potentiometer R1. With zero actuating. voltage the base of transistor T1 is held positive and it does not conduct, but transistor T2 does. When the actuating voltage is sufficient to make transistor T1 conduct, the current falls in resistor R7 so that the collector of transistor T2 goes more negative and further negative drive is applied through resistors R8, R9 to the base of transistor T1 causing rapid switching however slowly the actuating voltage rises. The actuating voltage required to switch the circuit depends on the variable resistor R2, and the differential between that actuating voltage and the actuating voltage at which the circuit switches back depends on the variable resistor R8. If a positive actuating voltage is required, the potentiometer R1 is taken to the negative line insted of the positive. The circuit drives an emitter follower output stage which may switch industrial control gear. As shown, the output is a positive-going signal, but a negative signal may be obtained by taking resistor R14 (the emitter follower input) from the collector of transistor T1 instead of transistor T2. Component values are given in the Specification. The actuating voltage may be derived from a photo-transistor.
Patent GB-163128-A (GB)
Title: Improvements connected with clockwork mechanism
IPC: G11B33/02
Filed: 1920-02-13
Abstract: 163,128. Daives, C. H. Feb. 13, 1920. Spring powerstoring mechanism. - To allow easy removal and the replacement of the going barrel E, the bearings F slip into the frame plates A along slots run from the edges, and are secured by bolts J.
Patent GB-684337-A (GB)
Title: Improvements in or relating to stands for teapots, coffee-pots and similar articles
Inventor: RUBEL LEO
IPC: A47G23/03
Filed: 1950-02-22
Abstract: 684,337. Teapot &c. stands. RUBEL, L. Feb. 21, 1951 [Feb. 22, 1950], No. 4499/50. Class 128 [Also in Group XVII] A drip-catching teapot &c. stand A, Fig. 2, has a central depression a, preferably larger than the baseof the pot, containing a heat-insulating disc a<SP>5</SP>, e.g. of felt, and is grooved at a<SP>2</SP> to provide a supporting rib a<SP>3</SP>. The teapot B and stand, Fig. 3, can be held together by a single elastic band or loop or a pair of bands connecting rings b<SP>2</SP> attached to the stand. Each band b of the said pair may be in the form of a loop connected' to a ring B' fitting around the knob b<SP>3</SP> on the lid b<SP>4</SP>, thus holding the lid on. The ring B<SP>1</SP> may have a U-shaped or looped handle b<SP>5</SP>.
Patent GB-541679-A (GB)
Title: Improvements in or relating to a collapsible photographic camera
IPC: G03B17/04
Filed: 1941-04-04
Abstract: 541,679. Photographic cameras. KODAK, Ltd. April 4, 1941, No. 4528. Convention date, June 12, 1940. [Class 98 (i)] In a collapsable camera comprising a front tubular member 15 which is provided with threads 14 engaging a threaded aperture in the body, the threads engage freely to enable the front to be easily extended or retracted, and co-operating elements are provided which engage when the front is extended and thrust portions of the two threads into close contact to position the front member accurately. As shown, two pairs of these elements are provided, each pair comprising a bracket 19 secured to the end of a rib in the member 15 and formed, with lugs 21 which engage the inner face of the member. Each bracket is formed with a bent arm having an inclined face 25 which when the front is extended slides under one of the spring arms 26, 27 of members 17, 18 secured to the camera body. The front is thus pressed forwardly, causing the threads 14, 15 to engage on one face and accurately positioning the member 15. The spring arm 27 is formed with a stop lug 28 which is engaged by one of the arms 24 to limit the rotation of the member 15. The camera may be of moulded material.
Patent GB-121052-A (GB)
Title: Improvements in and connected with Centrifugal and Turbine Pumps, Blowers and the like.
IPC: F04D29/24
Filed: 1918-03-15
Abstract: 121,052. Contraflo Condenser & Kinetic Air Pump Co., and Gull, A. E. March 15, 1918. Impeller blades.-The front and rear surfaces of the impeller blades conform to the same part of the same spiral, evolute, or like curve. Pumps of different internal and external diameter are formed by cutting away portions of standard castings of larger size. Fig. 4 shows, in shaded section, blades of an impeller, the outer and inner unshaded parts of standard blades being removed. The front and rear surface of the blades may be machined by the same machine, since they are of the same curvature.
Patent GB-419785-A (GB)
Title: Fire lighter
IPC: C10L11/04
Filed: 1934-02-14
Abstract: 419,785. Firelighters. LUTZ, J., 33, Lorenzstrasse, Hamburg, Germany. Feb. 14, 1934. No. 4923. [Class 50.] Firelighters are made up of assembled plates of saturated pressed material having air holes 'and interengaging slots, in the form of a number of vertical plates surmounted by a transverse plate so that when fuel is heaped on the lighter air spaces are formed by the side of the vertical plates. Firelighters, as shown in Fig. 3, are made up from two slabs of pressed material, one slab, Fig. 1, comprising the vertical plates h, f of three firelighters to be separated at notched lines e, and the other three top plates k. The vertical plates interengage at slots d. The top plate is retained in position by a projection g on plate h. A modified construction comprises four slotted vertical plates and a rectangular top plate with grid-like slots.