baber/WOPTO huggingface dataset:
Patent GB-1308698-A (GB)
Title: Machine for depositing doeses of cream on biscuits
IPC: A23G9/28
Filed: 1970-05-20
Abstract: 1308698 Cream depositing machines ATELIERS HEUZE MALEVEZ & SIMON REUNIS 20 May 1970 [23 May 1969] 24458/70 Heading B5A A machine for depositing cream doses on biscuits comprises conveyers formed by tensioned nylon wires 44-47, 64-67, co-operating with endless chains 14-16 having fingers 83- 86, to move the biscuits from magazines 104, 105 to a position below a barrel cream distributor E rotating about a horizontal axis and formed by an outer rotor 133 having channels 137 for depositing the cream, and an inner stator 132 fed with cream by a screw conveyer (127), Figs. 26 and 27, not shown, from a cream vat (117), Fig. 25, not shown, to an optional second biscuit supply 104, 105 for forming sandwiched biscuits and a shoe 206 controlling their thickness, and to a paddle 42 which distributes the biscuits for packing, the speed of the chain 14-16 and that of the conveyer (127), being syncrhonizable to prevent damage to the cream. The inner face of the rotor 133 has cavities 134 for the cream, and a spring-loaded scraper 158 forces the cream from each cavity into the channels 137, whereupon the dose is separated from the distributer by a cutting thread 189. The vat (117) has a speed adjustable paddle feeding the conveyer (127). In the barrel distributer in Figs. 19-21, not shown, the size annular outlet channels (178) are varied by washers (181) arranged in stacks. The machine can be fitted with two barrel distributors.
Patent GB-1506572-A (GB)
Title: Knife shield
IPC: B26B29/02
Filed: 1975-06-03
Abstract: 1506572 Bottle openers DEFENCE SECRETARY OF STATE FOR 3 June 1975 [3 June 1974] 24523/74 Heading B8T [Also in Divisions B3 B4 and H2] A shield assembly 20, 22 for a knife blade (see Division B4) is provided with a stop 29 which can be used as a bottle opener.
Patent GB-679793-A (GB)
Title: Improvements relating to bending machines
IPC: B21D11/12
Filed: 1950-10-09
Abstract: 679,793. Expanding-pulley gear. PEDDING- HAUS, P. C., and PEDDINGHAUS, W. (trading as PEDDINGHAUS, P. F., [Firm of]). Oct. 9, 1950 [Oct. 10, 1949], No. 24629/50. Class 80 (ii). [Also in Group XXII] An expanding - pulley gear comprises two discs 20 and 21 the disc 20 being fixed on a sleeve 23 keyed to the shaft 19 of a motor 14 and the disc 21 being mounted so as to be axially displaceable on the sleeve against a spring 24. By moving or swinging the motor the tension in the driving belt may be increased or decreased whereupon the diameter of the pulley decreases or increases respectively under the action of the spring 24.
Patent GB-364045-A (GB)
Title: Treatment of animals for the cure of foot-rot
IPC: A61D9/00
Filed: 1930-08-18
Abstract: A fabric boot, particularly for the treatment of foot-rot in sheep, is made in the form of a bag and is impregnated with a curative preparation comprising water, bluestone, and formalin, with or without glycerine.  A pad of absorbent material such as wool covered with gauze may be used within the boot.  The boot may be secured by a wire over which the fabric is folded or by a lace passing through eyelets.ALSO:A fabric boot, particularly for the treatment of foot-rot in sheep, is impregnated with a curative preparation comprising water, bluestone, and formalin, with or without glycerine.
Patent GB-860019-A (GB)
Title: Improvements relating to titanate materials suitable for dielectrics in ceramic capac
Inventor: POPPER PAUL
IPC: H01G4/12
Filed: 1956-08-14
Abstract: Bismuth titanate (Bi4Ti3O12) is made by mixing bismuth oxide and titania in the molecular proportions 2Bi2O3:3TiO2 and firing at 1100 DEG  C.  The bismuth may be in part replaced by yttrium, cerium, lanthanum or other rare earths.  Dielectrics may be formed of barium titanate and the above bismuth titanate by firing at 1100-1350 DEG C.  Tetragonal barium titanate, fired with the addition of 15% bismuth titanate, is converted to cubic form.
Patent GB-719682-A (GB)
Title: Improvements in or relating to electric discharge tubes for short-wave working
IPC: H01J21/36
Filed: 1952-10-03
Abstract: 719,682. Thermionic valves. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 3, 1952 [Oct. 6, 1951], No. 24825/52. Addition to 710,990. Class 39(1) A short wave electric discharge tube comprising flat electrodes which are supported by discs sealed into the wall of the tube and of which at least one electrode 2 is screwed into a tubular member 1 which is connected to the wall of the tube and sealed in a vacuum tight manner by means of a metal disc 4 welded to the outer end of the member, the electrode being provided with a duct 5 for carrying off air and other gases enclosed between electrode 2 and disc 4, is characterized in that the duct is provided with a filter wad 7 consisting of thin wire. The filter wad serves to prevent drops of solder or the like getting into the discharge space and it preferably comprises a single wire of tungsten, molybdenum or platinum having a diameter less than 1/50 of the diameter of the duct. Thus the duct may have a diameter of 1 mm. and the wire a diameter of 20 Á or less.
Patent GB-940967-A (GB)
Title: Improved magnetic head for recording and reading information on a magnetic medium
IPC: G11B5/187
Filed: 1962-06-29
Abstract: 940,967. Magnetic recording &c. heads. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 29, 1962 [July 3, 1961], No. 24995/62. Heading G5R. A head for recording a wider track than is played back has magnetic members 34, 36 and a non-magnetic member 46 defining the transducing gap and non-magnetic laminations 42, 44 separating the ferrous laminations constituting the outer regions 40 and the inner region of the total gapwidth. A heavy recording current after saturating the members 34, 36 still produces sufficient leakage flux to record over the full width of the head, but the weak playback flux is unable to overcome the magnetic shunting effect of the members so that only the region between the laminations 42, 44 is effective on playback. This renders realignment requirements of the head on playback less critical.
Patent GB-936129-A (GB)
Title: Improved ceramic cores for investment casting
Inventor: HEPWORTH MATTHEW ARNOLD
IPC: B22C1/00
Filed: 1961-07-11
Abstract: A ceramic core for a metal or alloy casting mould is formed by vibrating directly into a core channel of a wax pattern of a mould to gel and set in situ, a slurry of graded crushed fused silica e.g. 700 gms. 90 mesh B.S.S. with 300 gms.  200 mesh B.S.S. and 2,5 gms. calcined mangesia, with one or more alkyl silicates e.g. 300 ml of a liquid resulting from the addition of 150 ml of 1% W/W hydrochloric acid to 750 ml polymeric ethyl silicate or isopropyl silicate containing 40-43% silica.  After setting at room temperature the wax pattern and core are invested and oven dried to melt the wax when the core may be impregnated with further hydrolysed alkyl silicate prior to fusing.  The core may be cast around fused silica rods, fibres or tubes.
Patent GB-403056-A (GB)
Title: Improvements in revolving nose-pieces for microscopes
IPC: G02B7/14
Filed: 1933-09-11
Abstract: 403,056. Microscopes. ZEISS, C., [Firm of], Carl-Zeiss-Strasse, Jena, Germany. Sept. 11, 1933, No. 25075. Convention date, Sept. 14, 1932. [Class 97 (i).] In a revolving objective nose-piece for use in observation by incident light, each of the objectives is associated with a dark field condenser surrounding the objective in a ring-like manner. The Fig. shows a part-sectional elevation at right-angles to the plane of symmetry of the stand. The socket a on which the nosepiece is mounted is of spherical form and is provided with a slide b for attachment to the microscope tube. The socket is bored axially and contains an annular mirror c at 45‹ to its axis. A lateral extension d carrying a lens e has screwed to it a tube f containing a lamp g at the focus of the lens, so that parallel rays leaving the lens are directed downwardly as an annular axial beam by the mirror c. The body k of the nose piece is of hemispherical form and is rotatable on the socket a about an axis inclined at 45‹ to the plane of symmetry of the stand and to the axis of the lens e. The nose piece has three threaded apertures n each receiving a compound dark field system comprising an objective o mounted centrally in a glass plate q, and a reflecting condenser r surrounding the objective and screwed into a ring a so as to secure the plate q therein. The ring a is screwed into the aperture n.
Patent GB-732631-A (GB)
Title: Improvements in or relating to methods of making germanium elements for electrical devices
IPC: C30B11/00
Filed: 1953-09-11
Abstract: A method of making germanium elements for electrical devices, such as rectifiers and transistors, comprises melting germanium in a protective gas to form separate drops and allowing them to solidify the protective gas having an oxygen content of 0.1 to 1.0 vol. per cent.  The gas may be hydrogen, nitrogen, a rare gas or mixtures thereof and the oxygen added as such, or in the form of compounds which are decomposed at the temperatures required for melting the germanium, e.g. water vapour or powder is melted in cylindrical cavities in quartz or graphite blocks heated to a temperature of 980-1000 DEG  C., the cast drops being subsequently heat treated.  In one example the cast elements are heated for 20 hours at 550 DEG  C. in a mixture of 98 per cent vol. nitrogen and 7 per cent vol. of hydrogen.  In another example the cast elements are heated at 490 DEG C. for 20 hours in a dry protective gas.
Patent GB-723202-A (GB)
Title: Apparatus for sharp focusing of twin-lens photographic cameras
IPC: G03B13/20
Filed: 1950-10-17
Abstract: 723,202. Photographic camera focusing devices. HEIDECKE, R., [trading as FBANKE & HEIDECKE]. Oct. 17, 1950 [Oct. 29, 1949], No. 25296/80. Class 98 (1). For focusing a twin lens camera in poor light by projecting an image in focus on to the object to be taken, a housing 11 containing an incandescent electric lamp 12 and open at the far end is provided with a lens 14 to form an image of the lamp filament on the ground glass screen 5 of the camera finder system, the housing being attached either to the screen as shown, as by a suction foot 10 and if desired, being carried on a lazy tongs, or to the mount of a magnifier lens of the finder system, e.g. on the camera hood by means of a bayonet joint, Fig. 2 (not shown). To assist further in focusing, a diaphragm having two or more apertures may be attached to the finder lens 3. Specification 647,857 is referred to.
Patent GB-1116502-A (GB)
Title: Improvements in and relating to fastening devices
Inventor: BENNETT ALAN JAMES
IPC: F16B37/04
Filed: 1965-06-16
Abstract: 1,116,502. Anchor nuts. FIRTH CLEVELAND FASTENINGS Ltd. 8 June, 1966 [16 June, 1965], No. 25410/65. Heading F2H. A nut is of non-circular cross-section for fitting in a similarly shaped hole, and comprises a flange 12 at one end with recesses 11a adjacent to flange formed with relief surfaces (11c), Fig. 3, and stop surfaces (11b), so that the nut can be inserted in the aperture and rotated by a screw, which forms a thread in the nut, to prevent withdrawal. The head is formed with an annular rim 12 joined to the nut by a flexible web. The recesses may comprise only the stop surfaces, and may extend into the web of the flange for ease of manufacture. Small projections may be formed on the top of the flange.
Patent GB-343942-A (GB)
Title: Improvements in heavy oil engines for aircraft
IPC: F02B75/26
Filed: 1929-08-21
Abstract: 343,942. Compound compressors. SAMA SOC. ANON. DES MOTEURS D'AVIATION, 2, Rue St. Pierre, Lausanne, Switzerland. Aug. 21, 1929, No. 25454. Convention date, June 28. Void [Published under Sect. 91 of the Acts]. [Class 8 (i).] In an aircraft engine air is supplied to the engine by six groups of two-stage piston pumps ; each group comprises two low pressure cylinders 31, 41 and a single high pressure cylinder 5<1>. The low pressure cylinders deliver to a reservoir 6, from which the high pressure cylinders draw to deliver to a second reservoir 7 within the first. The pump plungers of each group are on a common rod 2, which carries a roller 15 or slipper riding over a rotating cam, the rollers &c. being held up to the cam and the outstrokes being effected by springs 14 surrounding a part of each rod. The air pumps are cooled by attached spaced ribs and the power cylinder by air circulation.
Patent GB-1201611-A (GB)
Title: Thermostats for gas-burning appliances
Inventor: MOORE ALAN THOMAS
IPC: G05D23/12
Filed: 1966-06-08
Abstract: 1,201,611. Valves. CONCENTRIC CONTROLS Ltd. 8 Sept., 1967 [8 June, 1966], No. 25541/66. Heading F2V. [Also in Division F4] A thermostat for a gas fire has a gas valve member 15 co-operating with a seat 14 and actuated by a bellows 10 at one end of a fluidcontaining thermal element in opposition to a spring 20 acting between the valve member and a stop 19 on a rod 17. The rod 17 carries a nut 21 threaded thereon and non-rotatably received in an upturned end of a lever 22 which abuts a cam 27 and pivots on abutment 25. The cam 27 is on one end of a setting spindle 26 which also carries the rotary part 31 of an overriding gas valve. The latter is rotated by an axially movable spindle 42 to first connect inlet 33 to outlet 37 and on further rotation also to outlet 38 leading to the chamber containing gas valve 15, which is by-passed by duct 39 also leading to outlet 40. Rotation of the cam 27 is simultaneous with the rotation of the valve 31 and acts to alter the loading on the valve 15 via lever 22 and rod 17. The disposition of the nut 21 on the rod 17 is initially adjusted by rotating the knurled end 29 of a sleeve 28 keyed to the rod 17 and afterwards locked in position by a U- shaped key 30. When the spindle 42 is pressed to actuate the thermostat the plate 43 actuates via a rod 51 an auxiliary ball valve with seat 49 controlling the flow to an auxiliary outlet 48. A bridging piece (46) is also moved by the rod 51 to connect electrical contacts (45) of an electrical gas ignition circuit. In a modification the spindle 26 is provided with a setting disc instead of the valve 31, which is replaced together with the auxiliary valve by spring-loaded valve members actuated through tappets by push buttons whose positions are controlled by releasable catches. In a further modification the lever whose pivot point is adjustable acts directly on the end of the spring which acts on the valve stem. The latter is connected to the top wall of a bellows, the space between which and the outer casing is connected to the thermal element. A rocker actuates an overriding gas valve via a push rod and also actuates a microswitch.
Patent GB-229257-A (GB)
Title: Improvements in magneto-electric machines
IPC: H02K21/32
Filed: 1924-10-28
Abstract: 229,257. Fabbrica Italiana Magneti Marelli. Feb. 13, 1924, [Convention date]. Magneto - electric machines; p o l e - pieces and yokes.- In magnetos having pole shoes embedded in a metal casting forming a single frame unit and having a rotating wound armature, eddy currents are prevented by interrupting the metal circuit around the pole shoes in a plane transverse to the axis of the armature. In one arrangement, Fig 1, the casting is interrupted at A and is then braced by a stay T between its sides F<1>, F<2>. The stay may be cast with the rest of the frame and connected by an oxidized-iron screw V and an insulating piece I. In the form shown in Fig. 3, the bridge P connecting the pole shoes is slotted at B, and when the pole shoes are solid the slot extends into them.
Patent GB-1186427-A (GB)
Title: Speed-Regulated Direct-Current Motor
IPC: H02P6/08
Filed: 1967-06-02
Abstract: 1,186,427. Electric motors. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. 2 June, 1967 [9 June, 1966], No. 25638/67. Heading H2A. In a P.M. rotor D.C. motor having a plurality of stator coils fed from a D.C. source and having stationary contacts connected to the source and to the stator coils, the contacts are connectable with interchangeable units for mechanical or electronic commutation. In the speed regulated mechanically commutated motor shown, a speed dependent voltage is tapped off the stator coils 6, 7, 8 by diodes 17, 18, 19 and compared with a reference voltage in a bridge 21 whose output is fed as a speed correcting voltage through a transistor 28 to a further transistor 16 which controls the current supply to the coils. For electronic commutation the transistor 16 and the mechanical commutator are replaced by a transistor/magnetic field dependent resistor combination, one for each stator coil, the output of transistor 28 is taken to the resistors (29, 30, 31, Fig. 3, not shown) and the latter are controlled by a magnet carried by the rotor.
Patent GB-446089-A (GB)
Title: Improvements in or relating to powder puffs
IPC: A45D33/34
Filed: 1935-09-04
Abstract: 446,089. Powder - puffs. LLOYD, A. H., Cintra House, Hatch End, Middlesex. Sept. 4, 1935, No. 25639. [Class 131] A pervious disc 10 of lamb's wool, cotton wool, or like soft material is secured to a perforated backing disc 11, and a rim piece 15 of flexible material is secured to the edges of the discs to form a receptacle for powder. The disc 11 may be of felt or lint, and it may be covered by gauze 13. An annular outer cover 17 of cotton or other fabric may be provided which may be reversible to enclose either the puff or the powder bag, the cover and the bag being provided with separate draw tapes; alternatively, a single draw tape may be provided for closing the powder bag and the cover 17 over it. As shown in Fig. 3, the powder receptacle is formed by rim pieces comprising overlapping flaps 21, 23. As shown in Fig. 5, the rim piece 25 forms the upper wall of the powder receptacle, and is provided with a diametral slit closed by a rapid fastener 25a. In Figs. 3 and 5, a separate layer of fabric may be placed over the powder, and the rim piece may be of leather, or leather cloth. As shown in Fig. 7, the receptacle extends to one side of the puff to form a filling neck 32 slotted at 33 which may be folded over as shown in broken lines and secured by a press stud 34.
Patent GB-150737-A (GB)
Title: Improvements in or relating to illuminating devices
IPC: F21V13/04
Filed: 1920-09-06
Abstract: 150,737. Verain, L. F. Sept. 6, 1919, [Convention date]. Lighting, systems of.-In apparatus for illuminating operation tables, draughtmen's tables, metal chaser's and engraver's benches, &c., a light source a is arranged at the focus of an annular condenser b, and the zone' of light produced is reflected on to the table d &c. The reflecting- means may consist of a conical mirror c, several flat mirrors, or an annular mirror whose curvature in places containing the axis of revolution can be varied. The condenser b can be completed by a mirror g or by an optical device capable of transforming most of the light into the luminous beam. The Specification as open to inspection under Sect. 91 (3) (a) states that the curvature of the annular reflector can be varied in planes at rightangles to the axis of revolution and that the condenser may be replaced by a mirror or other optical device. This subject-matter does not appear in.the Specification as accepted.
Patent GB-819717-A (GB)
Title: Improvements in electric switches and circuit breakers
Inventor: ROXBURGH ALBERT
IPC: H01H33/59
Filed: 1954-09-03
Abstract: 819,717. Arcing preventing in switches; air blast switches; automatic circuit-breakers; protective cut-out arrangements. BRITISH THOMSON-HOUSTON CO. Ltd. Aug. 24, 1955 [Sept. 3, 1954; Nov. 1, 1954], Nos. 25655/54 and 31536/54. Class 38 (5). An A.C. circuit-breaking arrangement comprises a half-wave rectifier connected in shunt with main contacts of a circuit-breaker and control means responsive to the current in the protected circuit to open the contacts during a half cycle of the current during which the rectifier is conducting and then to introduce a further break in series with the rectifier during a half cycle in which the rectifier is non-conducting. In Fig. 3, when an over-current occurs, a saturating current transformer 39 with resistive burden 40 applies an impulse to the grid of a thyratron 41 causing it to fire and energize a coil 38 to release a latch 35. This enables a spring 32 to move a switch blade contact 20, the constants of the releasing circuit and the inertia of the moving parts being such that the contact 20 after engaging the contact 22 to connect the rectifier 25; separates from the contact 21 during the positive half-cycle in which the rectifier 25 is conducting so that the contacts open without current therein. The contacts 20 and 22 then separate during the following half cycle in which the rectifier 25 is non-conducting so that they also open without current therein. In the air blast switch of Fig. 4, a blast valve (not shown) which would be operated by a tripping circuit similar to that of Fig. 3 applies pressure air to a piston 65 to open nozzle contacts 51, 59 during the half cycle in which the rectifier 74 is conducting. Pressure air is also applied to a piston 64 through a conduit 77 of such length that the piston 64 opens the nozzle contacts 50, 58 during the following half cycle in which the rectifier 74 is non- conducting.
Patent GB-393812-A (GB)
Title: Winch for all purposes and especially for buildings
IPC: B66D1/14
Filed: 1932-09-15
Abstract: 393,812. Clutches ; gearing for starting and stopping machinery. ATELIERS DE ST. PIERRE S. A. R. L., St. Pierre, Bas-Rhin, France. Sept. 15, 1932, No. 25658. Convention date, July 22. [Class 80 (ii).] A winch drum 6 is driven from a wheel 5 loose on the shaft 3 by frictional engagement of an expanding ring 13 within the end portion 12 of the drum when the clutch lever is thrown over so as to turn a sleeve 4 on the shaft and cause axial displacement of the wheel 5 and a cam 11, 11<1>. When the parts 11<1> engage friction surfaces 6<1> on the drum, the cam turns relatively to the wheel and spreads the arms 14, Fig. 3, so as to expand the ring 13. The ring 13 is engaged by a lug 15 on the wheel. The clutch lever operates the member 4 through toggle levers and a spring connection. The clutch is thrown out automatically at end of wind when a nut 21, Fig. 1, travelling along a screwed rod 20 engages a stop 24 on the clutch 16. The nut 21 may be adjusted on the rod 20 by releasing a clamping nut 26 so that the rod can be screwed through the nut 21 without operation of the driving gearing 23, 231.
Patent GB-606684-A (GB)
Title: Improvements in heat-interchanging apparatus
IPC: F28D1/06
Filed: 1945-10-03
Abstract: 606,684. Heat-exchangers for fluids. MYTTON'S, Ltd. Oct. 3, 1945, No. 25668. Convention date, Feb. 25, 1943. [Classes 64(i) and 64(iii)] In a heat-exchange vessel such as a preserving pan, cooking vessel, hot water boiler or cooler, the passages for circulating the heating or cooling fluid are formed by and between one or more sheet metal members 7 having channels formed by flutings 8 and the external surfaces of the walls and/or bottom of the vessel 6, to which the members 7 are welded by flanges 10 or connecting webs 11. In a modification, Fig. 4, the wall of the vessel is surrounded by a plate having a series of flutings 12 spaced vertically and communicating with flutings 13 passing circumferentially around the upper and lower ends of the vertical flutes. The bottom of the vessel may be provided with separate circulatory passages 17 the ends of which communicate with concentric header passages 17<1>, 17<11> the outer passage being connected with the channels around the sides of the vessel.