baber/WOPTO huggingface dataset:
Patent GB-475265-A (GB)
Title: Improvements in weft inserting mechanism for looms
IPC: D03D47/00
Filed: 1936-03-14
Abstract: 475,265. Looms with stationary weft supply. CRABTREE & SON, Ltd., D., and FELTON, W. March 14, 1936, Nos. 4622 and 25803. [Class 142 (ii)] Weft 5 which is inserted in the shed 6 by a reciprocating needle 3, passes on its way from the supply bobbin &c. 7 to the needle 3 through an eye 2 which is moved simultaneously with the needle, but at half speed whereby equal quantities of the weft are drawn from the bobbin &c. on the picking and return strokes of the needle 3. As shown in Fig. 1, the weft passes from the eye 2 to an eye 4, at the rear end of the needle. As shown in Fig. 7, the weft passes direct from the eye 2 to the eye at the front end of the needle, but is led from a fixed eye 15b in a backwards direction to the moving eye 2. The slide 2b carrying the eye 2 and the needle 3 are operated respectively by cables 8, 16 passing round pulleys 9, 17 on a shaft 10 oscillated by pinions and sector gearing 11. The diameters of the pulleys 9, 17 are in the ratio 1 : 2.
Patent GB-724420-A (GB)
Title: Improvements in pit and like props
IPC: E21D15/28
Filed: 1953-02-19
Abstract: 724,420. Pit props. HEWITT, H., and HEWITT, J. Feb. 19, 1953, No. 4632/53. Class 20(2). A pit prop comprises relatively slidable parts 1, 2 which are frictionally locked together by a wedge 5 which is squeezed upwardly when the load on the prop exceeds a predetermined amount, to allow the prop to shorten. The wedge 5 is mounted in a socket 3 on the part 2 between an inclined face 4 on the part 1 and an abutment member 6 in the socket 3, which is adjusted by a screw 9 and a wedge 7 to lie flat against the wedge 5. The position of the wedge 5 is indi. cated by a pin 10 which projects through the socket 3.
Patent GB-1210564-A (GB)
Title: Document inverting apparatus
IPC: G06K13/04
Filed: 1968-01-30
Abstract: 1,210,564. Inverting documents. RANK XEROX Ltd. Jan. 30, 1968 [Feb. 2, 1967], No.4728/68. Heading G2H. [Also in Division B8] A document inverting apparatus, especially for use with copying machines, has sensing means for sensing a document in a path diverging from a normal path of travel and means responsive to the sensing means for returning the document to its normal path of travel in reversed direction. Documents having information facing upwardly are fed between rollers 14 and 15 across a guide plate 45 to a switch 30 which deflects the document between plates 51 and 52. The leading end of the document is detected by a photo-electric cell 56 co-operating with a light source 57. The cell 56 is connected to a solenoid MOT-2 energized upon such detection. The solenoid MOT-2 rocks a roller 68 towards a roller 60 to feed the document upwardly between plates 51, 52 with its trailing edge foremost with the information facing downwardly. The document is then fed by rollers 18, 19, 20, 21 to a further switch 40 which deflects the document into a receiver 46, or to a document sorter (not shown).
Patent GB-1038021-A (GB)
Title: Improvements in or relating to sound recording and reproducing apparatus
IPC: G06F3/16
Filed: 1963-02-05
Abstract: 1,038,021. Optical recording apparatus. GENERAL PRECISION Inc. Feb. 5, 1963 [Feb. 5, 1962], No. 4743/63. Heading G5R. Sound recording apparatus comprises a cathode-ray tube, means for modulating the intensity of the beam of the tube in accordance with an audio input, and means for directing light from the face of the cathode-ray tube on to a photographic plate. In the recording apparatus shown in Fig. 2 the keyboard K and digitalto-analogue converter 212 serves to provide a unique Y axis deflection voltage for each key on the keyboard, thereby positioning the electron beam in a vertical sense to a selected one of the horizontal tracks to be recorded on a photographic plate 20. A word is then enunciated into the microphone 23, and the signal from the microphone triggers a threshold detector 214 which starts the horizontal deflection generator 230 and opens a gate 278 to allow the microphone output to pass to the cathode of the CRT and modulate the intensity of the beam. At the end of the word a marker record switch S-MR is operated to trigger a single-shot multivibrator 217 which produces a marking pulse, to indicate the end of a word, and at the end of the marking pulse re-sets units 230 and 278 so that the apparatus is ready for the selection of a further track and the recording of a further word. Part of the light output of the CRT is reflected to a detector PM to provide feedback to the audio circuit, so tending to linearize the system. An oscillator 229 may be connected to the Y plates to widen the beam path. In the playback circuit shown in Fig. 3 a binary number indicative of the required track passes to gates 310 and is allowed to pass through, on receipt of a pulse from unit 314, to digital-to-analogue converter 312 which produces the required Y deflection. A pulse from unit 314 is applied to generator 330 to start the X deflection and to unit 372 to unblank the cathode-ray tube. Light from the cathoderay tube then scans the selected track on photographic plate 20 to produce an output from detector PM which passes to utilization circuits, e.g. a loud-speaker 362. At the end of a word the marker pulse passes to units 330 and 372, to restore the initial conditions, and to unit 314 which initiates the playback of the next word. Some of the light from the CRT is reflected to a second detector PM-2 to provide a feedback signal to control the spot luminosity in comparison with a reference voltage from an adjustable potentiometer 316. If desired a reference amplitude tone may be recorded on one track which is used to provide the reference level. The two circuits shown in Figs. 2 and 3 may be combined into a single circuit, Fig. 4 (not shown), with suitable switching for changing from recording to playback; the apparatus can record 250 words which can be played back in any desired order. Although the audio input is shown as derived from a microphone it could be derived from a tape recorder, Fig. 5 (not shown).
Patent GB-540601-A (GB)
Title: Improvements in and relating to alloy steels
IPC: C22C38/02
Filed: 1940-03-15
Abstract: 540,601. Alloys. POTTS, H. E. (Electro Metallurgical Co.). March 15, 1940, No. 4848. [Class 82 (i)] A steel contains 0.25-2 per cent. of silicon, 0.1- 1 per cent. of carbon and 0.0025 to less than 0.1 per cent. of beryllium with or without a total of 0.03-1 per cent. of one or more of the metals aluminium, titanium, zirconium, uranium, cerium, thorium, vanadium, niobium, tantalum. alkali metals, and alkaline earth metals, and with or without one or more of the metals molybdenum, tungsten, chromium and nickel in such total amount as with the silicon and manganese if any to amount to less than 5 per cent. Manganese may be present up to 2 per cent. The proportion of beryllium actually added to produce the required residual content may be 0.01- 0-2 per cent. The beryllium may be introduced as an ingredient of the deoxidizing and grainrefining agents referred to in Specification 525,706, or it may be separately introduced before, during, or after such agent.
Patent GB-394755-A (GB)
Title: Improvements in or relating to electric hand lamps
IPC: F21V23/00
Filed: 1932-02-18
Abstract: 394,755. Charging batteries. BOYCE, R. D., 129, Mill Way, Mill Hill, London. Feb. 18, 1932, No. 4873. [Class 38 (iv).] The secondary battery 23, Figs. 3 and 4, of an electric hand lamp 20 for use on a motor vehicle is maintained in a charged condition by storing the lamp in a casing 10 which is mounted on the vehicle and contains charging plugs 15 connected through a resistance 17, Figs. 1 and 4, to the accumulator of the vehicle, the lamp body being provided with charging sockets 22 which are connected directly to the terminals of the battery of the lamp and adapted automatically to engage with the plugs 15 when the lamp is inserted in the casing. The sockets 22 are preferably mounted in the base of the lamp, in which case the plugs 15 project upwardly from an ebonite strip 13 resiliently mounted on the floor of the casing.
Patent GB-872061-A (GB)
Title: Improvements in or relating to suspension devices
IPC: A47B95/00
Filed: 1958-02-14
Abstract: 872,061. Brackets. COMPAGNIE FRANCAISE THOMSON-HOUSTON. Feb. 14, 1958 [Feb. 27, 1957], No. 4897/58. Class 52(5). A bracket for suspending a cupboard &c. comprises a bar 7 secured to a wall &c. and having vertical parts 15 resting there against and parts 12 defined by cuts and bent out to form a V-shape housing 6 to receive a downwardly directed part 8 of an attachment member 5 secured to, or integral with, the rear wall of the cupboard. The metal or plastic bar 7 has apertures 16 for the passage of fixing spikes or nails 17, which may be guided at a suitable angle as shown in Fig 3., and apertures 20 to receive safety hooks 14 secured, as by a nut on a threaded end 18, to the attachment member 5 the part 8 of which is inset from the wall a distance equal to the thickness of the bar 7 so that the cupboard hangs flat on the wall. In a modification the rear wall of the cupboard has a slot in which the parts 12 are received.
Patent GB-834136-A (GB)
Title: Improvements in or relating to spools for holding lengths of tape or the like
Inventor: WILLIS DONALD WESLEY
IPC: G11B15/67
Filed: 1957-02-13
Abstract: 834,136. Bobbins. DECCA RECORD CO. Ltd. Feb. 13, 1958 [Feb. 13, 1957], No. 4923/57. Class 120(3) [Also in Groups XVI and XX] A spool for holding a length of tape comprises a drum 10 with radially extending flanges 11 on either side thereof wherein a clip 16 is provided for securing the end of the tape to the drum, the clip having a manual operating member 17 external of one flange 11. The clip 16 is mounted on a pivot 15 substantially tangential to the surface of the drum, a helical spring being provided on the pin to urge the clip 16 into engagement with the drum.
Patent GB-1492253-A (GB)
Title: Process for producing ethylphenol
IPC: C07C67/00
Filed: 1976-02-09
Abstract: 1492253 Production of ethyl phenol LABOFINA SA 9 Feb 1976 04986/76 Heading C2C A process for decomposing diethylbenzene monohydroperoxide to ethylphenol and acetaldehyde comprises contacting a solution of 0À1 to 0À6 mole/litre of diethylbenzene monohydroperoxide in diethylbenzene with SO 2 , in an amount between 6 and 100 milligrams of SO 2  per litre of solution of diethylbenzene monohydroperoxide, at a temperature of 120 to 190‹ C., the contact time between the diethylbenzene monohydroperoxide and SO 2  catalyst being between 1 and 10 minutes.
Patent GB-911561-A (GB)
Title: Speed-setting indicators for portable electric tools
IPC: B23D49/16
Filed: 1961-02-10
Abstract: 911,561. Sanding; sawing. SINGERMANUFACTURING CO. Feb. 10, 1961 [Feb. 24, 1960], No. 5019/61. Classes 60 and 145. [Also in Group XXII] A portable electric tool 12, Fig. 3, such as a belt sander or a sabre saw, is provided with a speed-setting indicator which comprises a knob 15, secured to the spindle of a potentiometer resistance 11. A rotatable setting disc 18, Fig. 2, is provided under the knob and carries markings indicating material to be cut or worked and the coarseness of the sanding belt or saw teeth. The disc 18 is first set with the appropriate material marking against an index mark 28 on the tool housing and the knob 15 is then turned to bring an index mark 31 thereon against the appropriate coarseness marking on the disc.
Patent GB-1366263-A (GB)
Title: Coupling circuit for use in a data processing system
IPC: H04B3/36
Filed: 1973-02-01
Abstract: 1366263 Digital transmission; master and slave systems NATIONAL CASH REGISTER CO 1 Feb 1973 [17 Feb 1972] 5083/73 Heading H4P A coupling unit connecting a plurality of remote stations to a central data processing unit CPU comprises a first transformer having a primary winding connected through a line to the CPU and a secondary winding coupled to the inputs of a plurality of amplifier circuits, the outputs from which are each coupled to a second transformer connected to a remote unit, the amplifiers being adjusted to give a system overall gain of unity. The second transformers may be tapped to provide impedance adjustment and amplifiers may be provided for each direction of transmission. In the receiver section Fig. 2 (not shown), six amplifiers are operable in parallel to six remote stations, only that station(s) addressed being operable; in the transmit section Fig. 3 (not shown), a single common amplifier is employed.
Patent GB-379269-A (GB)
Title: Improvements in amusement devices
IPC: A63G7/00
Filed: 1931-02-18
Abstract: 379,269. Escalators. PICKARD, H., PICKARD, H., PICKARD, I., 61, Burling- ton Road, Blackpool, and RUTHERFORD, W., East Mill Hills, Haydon Bridge, Northumberland. Feb. 18, 1931, No. 5132. [Class 78 (i).] In apparatus of the kind in which chain conveyers carry cars by which passengers are elevated to the top of a staging and then the cars are tilted to eject the passengers into shoots down which they slide to the starting point, the elevator chains b, Figs. 4 and 5, are provided with a number of inverted T-bars b<1> about which the carriages c tilt to eject passengers into the shoot. The forward of each pair of bars is formed with a bevelled hole through which a pin c<1> passes, around which are springs c<3> to right the carriage from its tilted position. The carriage is also supported while rising by legs c<7> on wheels c<7> guided in an inclined runway until the carriage reaches the top of shoot when the guide is broken away and a knifeedge on the rear bar b<1> engages a notch in a cross-bar c<1> to allow the carriage to tilt. The tilting of the carriage may be positively effected by a cam formed of laminated springs. A pair of jockey wheels or guide rails guide the car over the end of the staging until the wheels c<1> engage lower rails g, Fig. 1. As the car turns over to commence its return journey it pivots about the shaft c<1> and the rear part of the car will tend to swing away from the conveyer, this movement may be checked by a forwardly extended arm having an upturned nose j<1>, Fig. 6, to engage the drum. Alternately, spring-cushioning means may be attached to the upper end of the guide g, such means comprising either a pivoted plate supported by a helical spring or a laminated spring. The shoot may have its sides d<1> set back as shown in Fig. 9 so that passengers sitting on a mat d2 can avoid friction with their arms. The passengers are discharged from the shoot on to a continuous conveyer formed of a number of belts o running on pulleys o<1>, o<2>, o<3> and driven from driving mechanism of the chain conveyer. A ratchet drive is provided so that if a passenger arrives at a higher speed than the driven speed of the belt, the pulley will overrun the ratchet and the abrupt changes of speed by the passenger are prevented. In place of this band conveyer the end of the shoot may have a series of resilient tyred wheels protruding therethrough running necessarily slower towards the delivery end. Fig. 12 shows a safety-device for use with the apparatus comprising a casing r mounted at the bottom of the incline in which is pivoted a counterbalance pawl s which allows the chain to move forward but should the chain break prevents movement in the opposite direction.
Patent GB-869129-A (GB)
Title: Substituted oxazolidines and tetrahydro-oxazines
IPC: C07D263/04
Filed: 1960-02-12
Abstract: Heterocyclic compounds having the general formula:  <FORM:0869129/IV (a)/1> in which R is a C1-C6 alkyl group or an aralkyl group containing not more than 8 carbon atoms, R1 is hydrogen or a C1-C6 alkyl group, R11 is hydrogen or a C1-C6 alkyl or alkenyl group and n is 2 or 3, may be polymerized or co-polymerized with other polymerizable monomers. For example, when catalysed with a small amount of peroxide these heterocyclic compounds give adhesive polymers at room temperature and brittle solids when heated at 125 DEG C. for 24 hours.  In addition, hydroxylated molecules, such as those of water, methanol or ethanol undergo addition reactions with these compounds to produce polymers.ALSO:The invention comprises new substituted oxazolidines and tetrahydro-oxazines of formula: <FORM:0869129/IV (b)/1> in which R is a lower alkyl or aralkyl group; R1 is a hydrogen atom or a lower alkyl group; R11 is a hydrogen atom of a lower alkyl or alkenyl group; and n is 2 or 3.  The "lower" alkyl and alkenyl groups contain not more than 6 carbon atoms and the "lower" aralkyl groups not more than 8 carbon atoms.  They may be prepared by refluxing an N-substituted-N-alkynyl-o -aminoalkanol of formula:  <FORM:0869129/IV (b)/2> in the presence of an inert organic solvent and a catalytic amount of potassium hydroxide for a period from a few minutes to 4 hours at a temperature of 110-145 DEG C.  The unreacted constituents are removed from the reaction mixture and the desired product distilled from the remaining mixture.  Suitable solvents are, for example, p-xylene and toluene.  The products may be catalytically hydrogenated to give the corresponding compounds with a saturated side-chain -CH2CH2R11 and these are identical with compounds obtained by reacting an N-substituted-2-aminoethanol or an N-substituted -3-amino-1-propanol with the appropriate aldehyde or ketone as follows:- <FORM:0869129/IV (b)/3> Examples are given of the preparation of compounds in which R is benzyl, isopropyl, or isobutyl; R1 is hydrogen, ethyl or n-propyl; R11 is hydrogen, n-butyl or isopropenyl; and n is 2 or 3.  The products may be used for the production of polymers and copolymers (see Group IV(a)).
Patent GB-564620-A (GB)
Title: Improvements in or relating to hand driers for personal use
IPC: A47K10/48
Filed: 1943-03-31
Abstract: 564,620. Photo-electrically controlled drying apparatus. JACKSON S. B. March 31, 1943, No. 5196. [Class 40 (iii)] [Also in Group VI] Relates to driers for personal use of the kind in which a distributing tube A has a number of transverse apertures through which heated air is delivered to flow over hands or other parts of the body. According to the invention, the drier is automatically controlled by a photo-electric apparatus influenced by the presence of a part of the body near the drier. In the apparatus shown, the tube A has two rows of apertures A<2>, A<3> and is fed with air through a heating chamber B by a blower B<4>. Lamps E<2>, E<3> at one end of the tube throw light beams F, F<1> to reflectors F<2>, F<3> at the other end, and the reflected beams F<4>, F<5> strike photo-electric cells D<2>, D3. The cells are connected to a valve relay circuit G, D controlling an electromagnetically-operated spring-returned switch C<2>, D<1>. The system is made ready for operation by the closing of a main switch C, and a switch E, whereby the lamps and the valve-relay and cell circuits are energized. If now, a hand or other part of a person comes across a light beam, the change of illumination on the cells causes the valve-relay G, D to operate to close the switch C<2>, whereby the blower B<4> and the heaters B<1>, B<2>, B3 are set in operation. In a modification, a change-over switch is provided. In one position of the switch, the apparatus operates photo-electrically as set out above. In a second position, the operation is controlled by a thermostat. In the third position, the operation is wholly under manual control. Various other minor modifications are described.
Patent GB-255507-A (GB)
Title: Apparatus for indicating the direction or angle of outflow of a fluid discharge
IPC: B63B49/00
Filed: 1925-02-25
Abstract: 255,507. Holbeach, M. G. Feb. 25,1925. Addition to 255,125. Direction of currents and stream-lines in fluids. -In apparatus for indicating the direction of stream-lines in fluids particularly for use in designing counter or contra propellers for marine or aerial vessel as described in the parent Specification the single movable vane is replaced by a plurality of movable members ranged along the flow station, means being provided whereby, when the members move to the natural angle of the flow, they are held in those positions. The holding means may be of a mechanical, electrical, pneumatic or fluid pressure nature. As shown in Fig. 1, the movable members or vanes 1 are loosely mounted on a rod 2 arranged behind the screw propeller 3. The vanes are separated by collars 5 and when moved to the natural angles are clamped in position by lowering a sleeve 6. A thimble 8 in a cap 7, Fig. 2, on the sleeve 6 bears against the top collar 5 and the top of the sleeve 6 is provided with a nut 12 engaging a screwed portion on the rod 2. The application to the propeller of an aerial vessel is shown in Fig. 3, the clamping of the set vanes being effected by a. crown piece 21 loosely keyed to the rod 2 and moved by means of a nut 17 adapted to be rotated by a rope or wire coupling 18 under the control of a distant hand wheel. A spring clamping device is shown in Fig. 5; the removal of a release pin 26 from a hole in the rod 2 permitting the spring to force the sleeve 6 against the collar 5. In an electromagnet form shown in Fig. 6 the armature 29 of the magnet 28 is carried by a pivoted rod 30 adapted to lower the sleeve 6. Suspension threads 32 raise the sleeve when the magnet is de-energized. A fluid pressure arrangement in the form of a pneumatic device is shown in Figs. 9, 10, wherein a pipe line 36 is connected to a holder 38 on which the vanes are mounted. The holder 38 has slots 39 and contains a collapsable tube 45 having air-tight joints at the top and bottom and when extended forms a non-yielding member that engages the vanes through the slots to hold them in position.
Patent GB-155726-A (GB)
Title: Process of producing dye stuffs
IPC: C09B61/00
Filed: 1920-02-21
Abstract: Dyestuffs are extracted from certain Australasian vegetation by treatment with a hot solution of sodium carbonate and lime, filtering off the liquid, and, if necessary, evaporating it to dryness.  The vegetation comprises Eucalyptus rostrata, Eucalyptus globulus, Eucalyptus amygdalina, Eucalyptus corymbosa, Exocarpus cupressiformis, Acacia harpophylla, Acacia polybotrya, Acacia melanoxylon, Mallotus discolor, Banksia such as Banksia marginata, Aster argophyllus, and Casuarina, including Casuarina equisetifolia.
Patent GB-1014973-A (GB)
Title: Improvements relating to brake controlled drums for aircraft arresting gears
IPC: B64F1/02
Filed: 1963-02-08
Abstract: 1,014.973. Reels &c. P. B. FONDEN, and K. O. T. WALANDER. Feb. 8, 1963 [Feb. 13, 1962], No. 5294/63. Heading B8M. [Also in Division B7] A brake controlled drum, from which an arresting wire or band connected to aircraft arresting gear is arranged to unwind, is characterized in that the drum is radially extended at the region from which the wire or band begins to unwind so that at least the first coil of the wire or band or a portion of the said first coil unwinds from a greater radius than the following coils, whereby the initial force acting on the drum when the arresting wire or band takes up the strain is reduced. In one example (Fig. 1) a helical groove 4 is formed in the radially extended portion 3 of the drum. In another example (Fig. 3) a component 5 is sandwiched between the outgoing end of the band 11 and the outer layer of the coiled band, and is released when the band is unwound. The drum has flanges 9, 10 and a brake 8. In another example, Fig. 2 (not shown), the inner surface of the component 5 is clamped against one end of the drum with the convolutions of wire covering the rest of the drum.
Patent GB-286449-A (GB)
Title: Improvements in metallic packing for stuffing boxes
IPC: F16J15/28
Filed: 1927-02-25
Abstract: 286,449. Carter, C. W., and Thomson, E. A. Feb. 25. 1927. Packing, metallic, for stuffing-boxes, for example, applied to a refrigerator compressor, comprises alternate split or solid rings 1 of hard metal and solid rings 3 of soft metal, the engaging surfaces of the rings being so inclined that end pressure by means of the gland 8 or otherwise press the soft metal rings inwards, whilst at the ends extra, soft metal rings 7 are provided having the bevelled surfaces reversed, and with sealing spaces 7a. A dividing member 6 may be arranged as shown.