baber/WOPTO huggingface dataset:
Patent GB-1108183-A (GB)
Title: Improvements in or relating to machines for injecting plastics material into a mould
Inventor: ASH BERNARD
IPC: B29C45/53
Filed: 1964-03-26
Abstract: 1,108,183. Injection moulding apparatus. POSTMASTER GENERAL. 26 March, 1965 [26 March, 1964], No. 12931/64. Heading B5A. Injection moulding apparatus comprises an injection barrel 10 having an extension 14 forming a discharge passage, means 15 for heating the extension only, and an injection piston 19 which can be withdrawn from the barrel 10 and pivoted to a position clear of the barrel to permit replenishment of the latter. The apparatus is designed primarily for jointing electric cables having sheaths and/or cores of plastics material. The piston 19 is mounted on a ram 20 which is in screw-threaded engagement with a pressure screw 23. By turning a handle 24 the piston 19 is advanced or retracted in the barrel 10. As resistance to forward movement of the piston 19 changes, the compression of springs 28, 29 increases or decreases and the piston 19 is advanced smoothly. The injection barrel 10 is mounted on two guide rods 4, 5 and can be pivoted about the rod 4, when the piston 19 is withdrawn. The piston 19 and its mounting are also pivotable about the rod 4. The barrel 10 is of stainless steel and the extension 14 of brass. The injection nozzle 16 has a manually rotatable locking collar 17 for screw-threaded engagement at 18 with a mould 33. A scale rod 30 carries two scales, one for indicating the pressure on the material being injected and the other for indicating the extent of movement of the piston 19 into the barrel 10. In a second embodiment (Figs. 2, 3, not shown) the piston (not shown), ram (20) and rods (4, 5) are pivoted about stub axles (38) to an approximately vertical position after the piston has been withdrawn from the barrel. The apparatus is mounted on a pair of legs (34) pivoted at (35) and a further support (not shown) under a collar (45).
Patent GB-1215105-A (GB)
Title: Improvements relating to the drilling of wells
Inventor: SHIRLEY KIRK RISINGER
IPC: E21B21/00
Filed: 1969-03-12
Abstract: 1,215,105. Boring earth and rock. K. R. SHIRLEY. 12 March, 1969 [3 July, 1968], No. 12939/69. Heading E1F. Reverse circulation of drilling fluid to a bit R is effected by a flow diversion tool T in the drill string comprising a body 3 and a packer member 22 rotatably mounted on the body. Drilling fluid passes down the drill string D and through a port 1 into a space A and is returned from the bit through a tube 11 and a port 2 to a space A'. When circulation starts, drilling fluid flows from the string through a port 51 and forces a sleeve 37 downwards to deform the member 22 against the casing. The tool is preferably in the upper part of the string.
Patent GB-1032323-A (GB)
Title: Process for the production of purified hirudin
Inventor: MARKWARDT FRITZ
Filed: 1964-03-26
Abstract: Impure hirudin, e.g. that obtained by the acetone/water extraction of leech heads, fractional precipitation with acetone and subsequent partial purification by ethanol fractionation, treatment with hydroxy-cellulose and absorption on a weakly acidic cationic exchange resin, is further purified by gel filtration through a dextran column and collecting the hirudin-containing fractions, from which the product may be obtained by alcohol precipitation or byophilisation.
Patent GB-1533025-A (GB)
Title: Internal combustion engine starting system
IPC: F02N19/00
Filed: 1976-03-31
Abstract: 1533025 Starting internal combustion engines JETCO Inc 31 March 1976 12956/76 Heading F1K Fuel for starting an I.C. engine 10 is injected into the inlet manifold from a pressurized container 16 of volatile fluid, e.g. ether, under the control of a solenoid-controlled metering valve 18, the solenoid 20 of which is in series with a starter switch 30, a timing switch 22 and an engine-temperature switch 40. The timing switch comprises a bi-metallic contact 25 in parallel with a heating resistance 24 to periodically open and close to actuate the solenoid 20 which meters a measured quantity of fluid from the container 16 on closing contact 25, and injects the metered quantity into the engine when the contact opens. The normally closed switch 40 opens when the engine-temperature reaches a predetermined value. When switch 30 is opened on the engine starting, solenoid 20 is automatically de-energized to provide additional metered fluid to the engine.
Patent GB-700162-A (GB)
Title: Improvements in or relating to electron discharge valve amplifiers
Inventor: CLIFFORD FREDERICK GEORGE
IPC: H03F1/36
Filed: 1949-05-16
Abstract: 700,162. Valve amplifying circuits. POSTMASTER GENERAL. Oct. 20, 1950 [May 16, 1949], No. 13012/49. Class 40 (6) in an amplifier having two or more stages, one being coupled to the next over a parallel combination of inductance, capacity and resistance, a band-pass effect is obtained by negative feedback. The coupling circuit is tuned to the geometrical mean frequency of the pass-band. Circuits L1, C1, R1 and L2, C2, R2 are tuned to the mid-frequency of the pass-band, a resistor R3 common to the cathodes of valve V1, V3 providing negative feedback. The feedback in a four valve amplifier, Fig. 2 (not shown), is apnlied to the grid circuit of valve V1 while the input is applied to the cathode. In modifications, Figs. 3 and 4 (not shown), the resistor R3 is replaced by a series circuit comprising an inductor, capacitor and resistor. The feedback impedance may be replaced by networks of resistors, Fig. 6 (not shown), or a combination of an inductor, capacitor and resistors, Fig. 7 (not shown). Any stage of the amplifier may take the form of a grounded cathode valve driving a grounded grid valve, Fig. 5 (not shown).
Patent GB-419152-A (GB)
Title: Improvements in tubular boilers for hot-houses and the like
IPC: F24H1/40
Filed: 1933-05-04
Abstract: 419,152. Water-tube water boilers. KINNELL, J. L., and KINNELL & CO., Ltd., C. P., 65, Southwark Street, Southwark, London. May 4, 1933, No. 13014. [Class 64 (i).] In a water heater of the horizontal tubular type comprising a front header 1, an end header 5 and an intermediate header 4, the header 4 is of U-shape and has inserted in the gap a vertical baffle plate 18 through which the main battery 6<a> of water tubes pass from the front to the rear header ; further tubes 6 are secured round the fire space between the intermediate and front headers, the latter having a fire door 3. Horizontal baffles 19, 20 are formed by strips resting between the tubes. Each tube of the main battery is held in a recess of an aperture in the inner faces of the front and rear headers by a rod 9 passing through and having a bridge piece 10 and nut 11 engaging the inside wall of each header. A removable cover plate 12 is provided in the outer wall over each aperture. The water enters at 16 and leaves at 17.
Patent GB-295623-A (GB)
Title: Decolorising agents
IPC: B01J20/20
Filed: 1927-05-14
Abstract: 295,623. B³ttner-Werke Akt.-Ges., and Kleinmann, F. May 14, 1927. Purifying saccharine liquids. - Decolourizing- agents for the treatment of sugar are prepared by intimately mixing hydrated aluminium silicates, e.g. fuller's earth, with soot, such as is obtained from American natural gas, in the presence of wetting agents such as alcohol, acetone, &c., the mixing being effected by wet grinding as in a ball mill which is preferably heated. Binding agents having decolourizing properties, such as silica gel or freshly precipitated hydrate of alumina, may be added. The wetting liquid is separated by suction and the decolourizing agent gently dried by heat before use.
Patent GB-976308-A (GB)
Title: A form for casting concrete
IPC: B28B23/04
Filed: 1962-04-05
Abstract: 976,308. Moulding concrete panels. C. I. WILLIAMS. April 5, 1962 [April 13, 1961], No. 13114/62. Heading B5A. [Also in Division E1] A plurality of forms for casting concrete are made together from a cast material, e.g. concrete in a mould 30 which is divided into elements by removable separator plates 34. Tensioned reinforcing rods 39, 40 are incorporated in the mould and pass through apertures in the separator plates 34 which are arranged so that, on removal of the plates 34 when the concrete has set, the reinforcing rods can be cut by the cutters 37. The forms are joined together in use by means of a spider 27 as shown in Fig. 1. Vertical rods (not shown) in the mould form notches at the corners of the panels which provide apertures for the bolts 26 to pass through.
Patent GB-131218-A (GB)
IPC: E06B3/50
Abstract: 131,218. Whitehead, J. Dec. 4, 1918. Pivoted-sliding windows.-The upper and lower sliding sashes a, b, are provided with trunnions c attached to the sash cord and sliding in grooves in the frame, and may be rotated on the trunnions to allow of cleaning the outside. The lower pa,rt n of the inner beading is hinged, and it may be recessed into the frame or formed as a corner piece. The middle beading i' and outer beading h are removed at the lower part to allow the outer sash to turn The inner sash fits in a groove m when closed. The trunnions are formed or flanged plates let into the wood and secured by screws, Fig. 5, or with sleeves to which the cord is hooked, Fig. 6. The sashes form a draughtproof joint when closed, and h,ave the usual sash fastening.
Patent GB-473255-A (GB)
Title: Improvements in and relating to internal furnace-flue steam boilers
IPC: F22B7/12
Filed: 1937-05-08
Abstract: 473,255. Multitubular steam boilers. ADAMSON & CO., Ltd., D., and PARKYN, P. A. W. May 8, 1937, No. 13184. [Class 123 (ii)] The rear part 8 of the furnace of a returntube boiler is of reduced diameter and smoke tubes 18 below the part 8 connect the combustion chamber 9 with a flue space 11 covered by an ash-receiving platform 14 below the grate 12, the flue space opening at its front end into a return-flue chamber 15 which is connected by smoke-tubes 19 to the combustion chamber below a partition 16. The furnace gases pass from the combustion chamber backwards through the tubes 18 and space 11 and forwards through the tubes 19 to the outlet 17, or the partition may so enclose the ends of the tubes 18 that the gases pass first backwards through the tubes 19 and then forwards through the space 11 and tubes 18.
Patent GB-1223776-A (GB)
Title: A process for the manufacture of aldehydes
IPC: C07C67/00
Filed: 1969-03-13
Abstract: 1,223,776. Production of aldehydes. F. HOFFMANN-LA ROCHE & CO. A.G. 13 March, 1969 [22 March, 1968], No. 13204/69. Headings C2C and C2U. Aldehydes are prepared by treating an organic compound having at least one group with hydrogen and a metal catalyst, the process being conducted under anhydrous conditions in the presence of an acid acceptor at a pressure above atmospheric. The catalyst is preferably Pd, Os, Pt or Ni on a solid carrier, such as carbon, and a catalyst regulator and an inert solvent may also be present. The pressure may be 1À035-112 atmospheres and a temperature of 10-150 C. is suitable. The acid acceptor is advantageously sodium acetate. In the examples benzaldehyde, 2,4-dichlorobenzaldehyde, 2 - naphthaldehyde, 3,5 - dimethoxy - 4 - methylbenzaldehyde, furfural, stearaldehyde and androstene-#<SP>5</SP>-3#-ol-17-al-3- acetate are prepared from the corresponding acid chlorides.
Patent GB-132322-A (GB)
IPC: D03D49/36
Abstract: 132,322. Smith, A. Newton-. Sept. 6, 1918. Pickers and picking-connexions.-A picker of the kind mounted on races comprising rails or grooves is formed between the mountings with two portions, one being provided with a tapered slot for the connexion of the picking-strap, and the other having a hole for engagement with the picking- stick. Either of the portions may be solid when the picker is intended for looms having only direct or indirect connexion between the picker and the picking-stick. The picker shown in Fig. 7 has a tapered strap-slot 6 in its forward part and a hole 12 in the rear part for engagement with the picking-stick. A loop of the picking-strap 10, Fig. 3, is held in the slot 6 by a pin or peg 11 passed longitudinally through a hole 8 in the picker. The slot 6 and the hole 8 or the hole 12 may be omitted. In the form of picker shown in Figs. 9 and 10, a bight of the picking-strap 10 holds a buffer 21, the ends of the strap passing through the slot 6 and being secured by a pin 11 held in position by the picker guides 4, 5. A hole 12 may be provided for engagement with the picking-stick, and the buffer may be held by a short length of strap secured in the same manner as the strap 10. The picker has a depending abutment 9<a> for the buffer.
Patent GB-816232-A (GB)
Title: Improvements in or relating to field excitation arrangements for synchronous electric motors
Inventor: SCOTT PETER
IPC: H02K19/12
Filed: 1956-04-30
Abstract: 816,232. Synchronous motors. GENERAL ELECTRIC CO. Ltd. April 26, 1957 [April 30, 1956], No. 13240/56. Class 35. In a synchronous motor compound excitation arrangement, the field winding 3 is fed through rectifiers from a transformer 6 whose voltage primary winding 8 is energized at a phase angle of 90 degrees with respect to the line voltage through a phase-splitting circuit 9, while the current primary winding 7 is connected in reverse so as to reduce any deviations from the desired reactive current component due to alterations in the line voltage.
Patent GB-999077-A (GB)
Title: Improvements in and relating to window screens
IPC: E05F15/20
Filed: 1963-04-03
Abstract: 999,077. Automatic control of illumination A.W. KUIJVENHOVEN. March 25,1964 [April 3, 1963], No.13249/63. Heading G3R. The natural illumination within a room is controlled by positioning a vacuum-metallised textile roller curtain by a motor responsive to the output of a photo-cell within the room. As shown, a photo-cell 9 having resistance R1,is connected in a Wheatstone bridge R1-R adjusted to a balance at the desired level of natural light. Unbalance causes a transistor TS1, TS2 to become conductive to cause a relay RL1, RL2 to operate and energize a motor M to rotate a curtain roller and raise or lower a curtain until the desired light level is restored. The motor is manually controlled by a switch 11. Limit switches 14, 15 are incorporated in a gear box 8. The photo-cell may be provided with a reflecting prism mounted as a rotatable cover.
Patent GB-1020210-A (GB)
Title: Production of bromine
Inventor: DAVIS WAYNE THOMAS
IPC: C01B7/09
Filed: 1964-03-31
Abstract: The effluent from the reaction of HCl with a molecular-oxygen-containing gas, e.g. air, in the presence of a variable oxidation state catalyst, is mixed with an aqueous salt solution containing at least 50 ppm of bromine to liberate elemental bromine.  Suitable salt solutions include sea water, natural brines (e.g. Dead Sea and Israel brine) and artificial brines (e.g. by-products from the salt industry). 50-70 volume per cent of air and 30-50 volume per cent of moist or anhydrous HCl can be reacted in the presence of a copper chloride mixture mounted upon an inert carrier, e.g. silica, silica gel, alumina, pumice, asbestos, kieselguhr or diatomaceous earth.  The HCl oxidation may be conducted at 300 DEG -700 DEG  C. and at a pressure from atmospheric ot 100 p.s.i. The bromine liberated may be extracted into the gas phase in a blowing-out tower by air, this gas phase then being contacted with SO2 and H2O (or NO) to form a HBr solution in H2SO4, the HBr is oxidized with Cl2 (preferably another portion of the effluent) and heated to liberate and separate elemental bromine from the solution.
Patent GB-476541-A (GB)
Title: Improvements in or relating to short wave wireless communication systems
IPC: H04B7/10
Filed: 1937-05-10
Abstract: 476,541. Wireless signalling. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. May 10, 1937, No. 13299. Convention date, May 8, 1936. [Class 40 (v)] In a short-wave system for two-way or interchange traffic on highly - directional channels, one of the stations is provided with an omni-directional aerial which serves on the receipt of a call to prepare one signalling channel and then radiates a " busy signal " to protect it. In the central systems shown in Fig. 1, for instance, a call from station G<11>1 is received by the omni-directional aerial R at the central station Z, and operates a receiver Mz which energizes' beam receiver G'1 and a beam transmitter G<1>4 directed towards the desired station G<11>4. During the period of this intercommunication, the aerial R radiates a general signal to warn the other outlying stations that G<11>4 is " busy." In the " line " system shown in Fig. 1, a call, say from station I for station II, is received by the " wide angle " aerial W11, which operates receiver M11 to switch in the directional apparatus G11 and swing it into position for communicating with G1. Each station may be fitted with duplicate transmitters and receivers for working on different wavelengths.
Patent GB-169132-A (GB)
Title: Improvements in moustache guards for drinking vessels
IPC: A47G19/22
Filed: 1921-05-11
Abstract: 169,132. Maxey, A. W. May 11, 1921. Moustache guards.- A detachable moustache guard for a drinking vessel comprises a bridge-piece a extending across the top of the vessel and a substantially semicircular extension b fitting the outside of the vessel. Shoulders c may be provided to contact with the vessel wall.
Patent GB-885230-A (GB)
Title: Improvements relating to accessories for baths
Inventor: WHITEMAN IVAN
IPC: A47K3/00
Filed: 1958-04-26
Abstract: 885,230. Baths. BILSTON FOUNDRIES Ltd. April 14, 1959 [April 26, 1958], No. 13323/58. Class 26. An accessory for a bath comprises a hand rail 10 hingedly connected at one end to a base secured to the top of a bath at one side, near the middle of its length, to be swingable between an out-of-use position above the bath in or close to the plane of the said side, and a position of use when it extends substantially horizontally across the wall of the bath. The rail 10 is held releasably when out-of-use by a ball-catch 14, 15, 16 or similar snap means in one of the lugs 13 of the base having holes engaged by the hinge pin 12 traversing a T- piece 11 joined to the rail 10. Alternatively, a spring washer 24 or like friction member is operatively disposed between the piece 11 and the base to swing and hold the rail in any position from the out-of-use position to the position of use. The washer 24 is intermediate two steel washers 23 in a recess in the T-piece 11 and is compressed initially by turning a slotted bush 21 with a hole 22 for the pin 12 and within an endpiece 19A. The hinge axis may extend substantially vertically, the rail lying along the bath length when out-of-use. The free end of the rail 10 may have a rubber ferrule 19. At or adjacent the free end and at the corresponding bath side there may be mutually-engageable keeper means which engage one another in the position of use but readily disengage for the rail to be swung to or towards the out-of-use position.
Patent GB-1104723-A (GB)
Title: Method of and apparatus for controlling the working depth of a cultivating implementattached to the rear of a tractor
Inventor: MOLLER HERMANN
IPC: A01B63/114
Filed: 1965-03-30
Abstract: The working depth of an implement attached to a tractor power lift mechanism is controlled in response to variations in the angular speed of the tractor in travelling over ground irregularities.  The element which senses changes in the angular speed of the tractor can be a gyro or an oil bath in which two floats are fixed to the ends of a double armed lever pivoted at its centre.  Means are incorporated for compensating the device for changes in the linear speed of the tractor.
Patent GB-1075402-A (GB)
Title: A method of and apparatus for treating metallic sheet and strip material
Inventor: WALLACE JOHN FREDERICK
IPC: B21D1/02
Filed: 1964-04-01
Abstract: 1,075,402. Altering physical structure; straightening. PRESSED STEEL FISHER Ltd. April 1, 1965 [April 1, 1964], No. 13404/64. Headings B3E and B3V. A method of treating sheet or strip formed from a metallic material having a discontinuous yield point includes passing the strip or sheet between a pair of rolls, bending the sheet or strip around a first roll of the pair of rolls and controlling the bending by using a second roll, which has at least its periphery formed from material more resilient than the first roll so that the sheet or strip is urged to conform to the contour of the first roll, the diameter of the first roll, the resilience of the second roll and the pressure applied being such that when the material is passed between the rolls it is caused to deform in a manner resulting in suppression of the discontinuous yield point, whereafter it is passed through a series of stagger rolls to straighten the sheet or strip. Low carbon steel strip passes between pinch rolls 12, 13, between a small diameter roll 18 and a large diameter roll 19 having a resilient surface 36 of reinforced nylon, polyurethane or aluminium, then through a roller leveller 33. The roll 18 is backed by rolls 23 and the roll 19 is urged upwardly by hydraulic cylinder means 32. The strip may be maintained in tension before and after passing the rolls 18, 19. Apparatus to process sheet may have a stripper blade or roll associated with the roll 18.
Patent GB-1094193-A (GB)
Title: Improvements in or relating to colour television camera arrangements
Inventor: SMITH NORMAN NEVILLE PARKER
IPC: H04N9/097
Filed: 1964-04-01
Abstract: 1,094,193. Colour television camera. MARCONI CO. Ltd. Jan. 25, 1965 [April 1, 1964], No. 13440/64. Heading H4F. In a colour television camera light from a subject of transmission is split into two beams by an apertured mirror 4, the light which passes through the central hole 3 being focused on to a luminance camera 2 and the light which is reflected from the annular mirror 4 being split into at least two component colours (three as shown) by dichroic mirrors 5 and 7 and focused on to colour cameras 6, 8 and 9. The mirror 4 is positioned at 45 degrees to the centre ray of the light passing through hole 3 and the area of the hole is approximately half that of the illuminated area of the annular mirror. The arrangement makes maximum use of the light available from the subject of transmission and relies on the fact that it is possible to employ a relatively low standard of definition in the colour cameras so long as a luminance image of good resolution is produced. In live televizing an iris arrangement, Fig. 2 (not shown), is used to adjust the areas of the hole 3 and annular mirror 4. Such an arrangement is described and claimed in Specification 1,094,194 and comprises a hole of adjustable diameter in an approximately planar mirror-iris and a non- reflecting iris concentric with the mirror iris and covering the mirror surface thereof by an extent determined by the adjustment of the non-reflecting iris, the two irises being gangcontrolled so that in all positions of adjustment the ratio of mirror area of the mirror-iris exposed by the non-reflecting iris, to the area of the hole is of a predetermined value, e.g. 2 to 1.