baber/WOPTO huggingface dataset:
Patent GB-781703-A (GB)
Title: Improvements in or relating to photographic contact printing apparatus
Inventor: HOLLIMAN ALBERT RONALD
IPC: G03B27/16
Filed: 1955-01-05
Abstract: 781,703. Photo - electric measurement. ILFORD, Ltd. Dec. 14, 1955 [Jan. 5, 1955], No. 301/55. Class 40 (3). [Also in Group XX] In a photographic contact printing apparatus, particularly one in which it may be desired to insert opaque masks framing the picture area, the photographic negative and translucent lightsensitive printing paper are held pressed together by means including, on at least one side of them, a resilient transparent or translucent member. The use of this type of member as a resilient platen enables even pressure to be exerted over the image area whilst a lightsensitive cell can be placed to receive light passing through the negative, printing paper, and platen and connected to means for measuring or recording the said light. The exposure time, or light intensity, or both, may be controlled automatically in accordance with the photo-cell output. In a preferred embodiment the negative and paper are laid on a glass window forming part of a housing for the source of illumination and a hinged platen comprising resilient light-transmitting sponge material (such as is known under the name " Neoprene ") pressed against them. In an alternative form the platen may comprise an inflated bag of transparent or translucent plastic material. The cell is preferably sensitive to visible light but may possibly be sensitive to infra-red or ultra-violet radiation.
Patent GB-983309-A (GB)
Title: Arresting device for wire rope stranding machines
Inventor: KUHN GERT
IPC: D07B7/08
Filed: 1962-01-04
Abstract: 983,309. Wire rope machine stop motions. STARKSTROM-ANLARGENBAU MAGDEBURG VEB. Jan. 4, 1962, No. 391/62. Heading D1T. A stop motion for a wire rope machine comprises a relay 4 which switches off the machine when it is activated as the result of a leakage in a constituent strand 5. This activiation is accomplished by having in the activating circuit of the relay, a thyratron 3 which is normally blocked by a negative voltage, e.g. 150 volts on the grid; however when a strand breaks the grid is earth via the conducting ring 2 and the strand so that the thyratron is fired and the relay activated.
Patent GB-682132-A (GB)
Title: Improvements in or relating to the preparation of beta-substituted acrylic acids
IPC: C07C51/00
Filed: 1951-01-05
Abstract: Beta-substituted acrylic acids of the general formula <FORM:0682132/IV (b)/1> wherein R is an alkyl radical and R1 is hydrogen or an alkyl radical, are prepared by reacting beta-lactones of the general formula <FORM:0682132/IV (b)/2> wherein R and R1 have the above significance, and sulphuric acid, e.g. concentrated sulphuric acid.  The groups R and R1 may contain from 1 to 4 carbon atoms.  The sulphuric acid may comprise from 8 to 15 per cent by weight based on the weight of said beta-lactone.  The following beta-lactone starting compounds are mentioned: beta-butyrolactone, beta-valerolactone, beta-caprolactone, beta-methyl-betavalerolactone, beta, beta-dimethyl-beta-propiolactone, beta, beta - dipropyl - beta - propiolactone, beta - butyl - beta - propiolactone, beta, beta - dibutyl - beta - propiolactone, betahexyl - beta - propiolactone, gamma - methylbeta - caprolactone, gamma - ethyl - betacaprolactone and gamma - methyl - betavalerolactone.  In the examples, beta-dimethyl acrylic acid is prepared. Beta-methyl-, betadibutyl-, and beta-isopropyl-acrylic acids are also mentioned.  Specification 649,028 is referred to.
Patent GB-634834-A (GB)
Title: Chain pipe vice
IPC: B25B1/20
Filed: 1948-01-07
Abstract: 634,834. Vices. AVES, H. Jan. 7, 1948, No. 463. Addition to 622,164. Drawings to Specification. [Class 61 (ii)]  The vice described in the parent Specification is modified in that the operating lever is mounted on'the angle through the medium of steel plates and distance-pieces and carries a single lug to which the chain is fixed. The plates lie between the pipe-holding jaws.
Patent GB-562661-A (GB)
Title: Improvements in hand-operated electrical appliances
IPC: B23K3/03
Filed: 1943-01-09
Abstract: 562,661. Hand-operated electrically heated appliances. ROSE, A. G., and ROSE BROS. (GAINSBOROUGH). Ltd. Jan. 9, 1943, No. 469. [Class 39 (iii)] A hand - operated electrically heated appliance such as a soldering iron or clothes iron, is provided with a two-part handle 16 wholly or in part of transparent or translucent material, containing a neon discharge lamp 19 to serve as a warning if the current is left on. The lamp or the handle may be coloured.
Patent GB-1152131-A (GB)
Title: Improvements in or relating to Flushing Cisterns
Inventor: PARKER CLIVE FORDHAM
IPC: E03D1/01
Filed: 1967-01-04
Abstract: 1,152,131. Flushing cisterns. FORDHAM PRESSINGS Ltd. 1 Jan., 1968 [4 Jan., 1967], No. 513/67. Heading E1C. A flushing cistern or trough is formed from a rectangular sectioned tube 1 of plastics or metal with welded-in end plates 3, the upper wall 5 being cut away to allow for the mounting of at least one syphon (e.g. 8) and one ball valve 10 and float 11. The plastics may be polyvinyl chloride or polypropylene, and is extruded as a cylinder and then drawn through a rectangular die.
Patent GB-740164-A (GB)
Title: Improvements in or relating to self-contained driving units for lathes and other machine tools
IPC: H02K5/26
Filed: 1953-01-08
Abstract: 740,164. Belt gearing. SMITH, O. D. March 18, 1954 [Jan. 8, 1953], No. 580/53. Class 80(1) [Also in Group XXII] A change speed driving unit for a machine tool comprises a frame having two plane mounting surfaces 10, Fig. 2, inclined at an obtuse angle to each other, one surface being adapted to receive a driving motor 16 and the other a gearbox 17, the frame being adapted to rock about a spindle 12 parallel to the machine axis, a belt drive 19 being provided from the motor to the input shaft of the gearbox and a pulley 21, Fig. 1, on the output shaft of the latter, adapted to drive the machine spindle through a belt 22. Tension in the belt is normally produced by the weight of the driving motor which exceeds that of the gear-box, but, adjustment of the tension is provided for by a strut 26 enclosing a pair of springs which are adjustable by a sleeve and lock nut 38. A control handle 25 is provided for the gear-box and a switch panel 24 for the motor. The bracket 15 may be secured to the frame of the machine or may be fastened to an auxiliary floor or wall bracket adjacent the machine.
Patent GB-808458-A (GB)
Title: Improvements in snap-action electric switches
IPC: H01H13/60
Filed: 1957-01-07
Abstract: 808,458. Snap-action switches. ALBERT, P. L. L. Jan. 7, 1957 [Jan. 6, 1956], No. 586/57. Class 38 (5). In a switch operable by successive similar operations of a push button, the latter bears on one or other of two surfaces on an intermediate member which is adapted to turn about a pivot which is in turn adapted to swing about a fixed axis, a dead centre spring being attached at one end to the intermediate member and at the other end to a pivoted contact adapted to swing between two fixed contacts. In one form, Fig. 1, the movable contact 4 is U-shaped and is pivoted by knife edges 5, the spring 13 being hooked in an aperture 14 at one end and in the bottom 15 of a cut-out in the intermediate member 12. The latter is pivoted by a knife edge 11 on a U-shaped control member 7 itself pivoted at 8, the pivots 5 and 8 being formed in a part attached to a terminal 1. Assuming the switch to be in the position shown, depression of push button 21 causes the intermediate member to tilt about the pivot 11 to carry the spring across dead centre and change contact 4 over from terminal 2 to terminal 3. After release of the button, the member 12 tilts back slightly to bring edge 11 and points 14, 15 into line and then the member 7 itself swings clockwise about the pivot 8 so that the parts are arranged in the opposite position to that shown, ready for the next operation. In Fig. 3, the intermediate member 31 pivots about a spindle 32 in arcuate slots 33 in the walls of a U-shaped member 30, the arrangement being such that after the contacts have changed over and the push button has been released, the spindle 32 moves to the opposite end of slots 33. In a further arrangement, Fig. 6, the tension spring 13 is replaced by a compression spring 40, and the spindle 32 is located against the upper edges of apertures 47 in the member 30.
Patent GB-231934-A (GB)
Title: Improvements in or relating to the manufacture of carbonized briquettes
IPC: C10L5/14
Filed: 1924-01-09
Abstract: 231,934. Goskar, T. A. Jan. 9, 1924. Coking processes.-A briquette containing a mixture of caking and non-caking coals is coked at a temperature of 600-1200‹ F. by contact with hot producer gas. Specifications 120,585 and 221,526, [Class 55 (ii), Gas manufacture &c.], are referred to.
Patent GB-1505201-A (GB)
Title: Volume control circuit for the variable attenuation of electrical signals
IPC: H03H7/24
Filed: 1976-01-08
Abstract: 1505201 Variable attenuators INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA SpA 8 Jan 1976 [10 Jan 1975] 00665/76 Heading H3U A volume control circuit for the variable attenuation of audio frequency signals comprises a linear potentiometer to the end terminals of which input signals are applied, and from the slider of which output signals are taken, a frequencyvariable impedance C, R being connected between the slider and one of the end terminals so that medium-high frequency signals are attenuated more than low frequency signals. An input capacitance C, may be provided and may have the same capacitance as C. In addition, a further resistor may be connected in parallel across C, R.
Patent GB-456483-A (GB)
Title: Improvements in or relating to saliva tubes
IPC: A61C17/08
Filed: 1936-01-08
Abstract: 456,483. Saliva ejectors. AMAN, C. A., 49B, Ostra Agatan, Upsala, Sweden. Jan. 8, 1936, No. 669. Convention date, April 25, 1935. [Class 81 (ii)] A saliva tube to be connected to the usual pump and of the kind having an air supply duct to break the vacuum when the level of the saliva falls, is so constructed that the connection with the air supply duct is situated below the lowermost level of any of the saliva suction ports. In the form shown in Fig. 1, an internal air duct 3 opens into the saliva tube 1 at a point 6 below the level of any of the saliva suction ports 2. In a modification, Fig. 3, the air duct 3 surrounds the tube 1. Specification 18362/11, [Class 81 (ii)], is referred to.
Patent GB-1325422-A (GB)
Title: Process for the preparation of alkyl 2-benzimidazole carbamates
IPC: C07D235/32
Filed: 1971-01-06
Abstract: 1325422 2-Benzimidazole carbamates E I DU PONT DE NEMOURS & CO 6 Jan 1971 [16 Jan 1970] 686/71 Heading C2C An alkyl 2-benzimidazole carbamate of the formula in which R is a C 1  to C 4  alkyl group and Y is -H, -Hal, -NO 2  or C 1  to C 4  alkyl is prepared by (a) reacting cyanamide with a mercaptan of the formula R 1 SH in which R 1  is a C 1  to C 4  alkyl group; (b) adding a base to the pseudothiourea produced in step (a) and reacting it with an alkyl chloroformate of the formula ClCOOR (R as defined above) at pH from 4 to 9 and (c) reacting the acylated pseudothiourea produced in (b) with an o.phenylenediamine of the formula in which Y is as defined above at a temperature above 40‹ C. and at a pH from 1 to 8. Step (a) is preferably carried out in acid at pH from 6 to 11, in an aqueous and/or alcohol solvent at from 0‹ to 60‹ C. Step (b) is preferably carried out in the presence of added base at from 0‹ to 105‹ C. Step (c) is preferably carried out at from 40‹ to 130‹ C. The mercaptan produced in the final step (c) may be recovered and recycled to step (a).
Patent GB-509401-A (GB)
Title: A process for the purification of sugar solutions
IPC: C13B20/12
Filed: 1938-01-10
Abstract: 509,401. Purifying liquids. NAAMLOOZE VENNOOTSCHAP OCTROOIEN MAATSCHAPPIJ ACTTVIT. Jan. 10, 1938, No. 753. Convention date, Jan. 11. 1937, [Classes 4 and 111] [Also in Group VI] The Specification as open to inspection under Sect. 91 describes the use of active carbonaceous colloids, obtained by treating carbonaceous. material) for example sawdust or bagasse, with sulphuric acid, phosphoric acid, zinc chloride or other dehydrating agent, for the purification of liquids generally and, in particular, for the treatment of water containing iron and of waste water. This subject-matter does not appear in the Specification as accepted.
Patent GB-1459696-A (GB)
Title: Blank and a picture frame when made from said blank
IPC: G09F1/12
Filed: 1975-01-08
Abstract: 1459696 Picture frames BEROL Ltd 3 June 1975 [8 Jan 1975] 769/75 Heading A4X [Also in Divisions G4-6]  A blank of cardboard for making framed pictures or posters comprises a rectangular central area 11 and opposed pairs of extensions 14, 15 each divided by fold lines 16 to 19 into three parts with the middle part 14b of each of the opposed extensions 14 having mitred ends whereby in the erected condition of the blank each extension piece forms a limb having a triangular cross-section. Tabs 14d on the extensions 14 engage in slots 15d in the extensions 15 and tongues 20 on the extensions 14 overlie parts 15a of the extensions 15. Holes 21 are for a support string. A mount (22), Fig. 6 (not shown), may overlie a picture supported on the central area 11. The joints may be glued.
Patent GB-248526-A (GB)
Title: Improvements in or relating to the side windows of motor road vehicles
IPC: B60J1/14
Filed: 1925-01-10
Abstract: 248,526. Lamplugh, H. A. Jan. 10, 1925. Weather screens.-The side window of a motor vehicle with a saloon or other closed body is provided with one panel 3 pivoted on vertical pivots near the forward edge so as to move outwardly at the rear edge and inwardly at the front and thus to provide ventilation without direct draught. The pivoted panel overlaps its adjacent panel 1 on the inside, the channel frames 2 and 5 being omitted at the meeting edges and the side members being cut away to allow the corners of the panels to contact. The bottom pivot is shouldered and mounted in a bracket attached to the frame and is engaged by a U-shaped locking or holding member 14, Fig. 5 adapted to be clamped on the pivot by the screw 17 to secure the panel in any position. The clamp is screwed to an L-shaped bracket 12 on the body. The panel may be fixed in any position by means of a spring-pressed stud engaging a quadrant. Suitable stops may be provided to limit the amount of opening and in omnibuses a spring- pressed stop may be provided for this purpose which is accessible only on the outside. Beading may be provided on the movable frame to exclude rain.
Patent GB-441906-A (GB)
Title: Improvements in and relating to crushing and breaking apparatus for stone and like materials
IPC: B02C1/04
Filed: 1935-01-10
Abstract: 441,906. Breaking-pieces for relieving strain in machinery. HISCOX, W. A., Stuart Works, Phoenix Street, Derby. Jan. 10, 1935, No. 814. [Class 80 (iv)] [See also Group II] In a stone crusher a flywheel 13 loosely mounted on a crank-shaft 11 has a belt pulley 12 secured to the spokes. A sleeve 12<a> is fixed to the shaft 11 by a key 12<c> and a bolt 12b jambs a breaking piece 14 between the sleeve and the boss of the fly wheel whereby the rotation of the pulley is transmitted to the shaft.
Patent GB-551911-A (GB)
Title: Improvements relating to urns for dispensing tea and analogous alimentary beverages
IPC: A47J31/40
Filed: 1942-01-20
Abstract: 551,911. Tea &c. urns. BARKERS (CONTRACTORS), Ltd., and DIXON, E. K. PORTMAN. Jan. 20, 1942, No. 843. [Class 129] [Also in Group XVIII] An urn 1 for dispensing tea &c. is combined with receptacles 2, 3 for milk, fluid sugar &c. communicating by pipes 10, 11 with a metering device 16 provided with a delivery spout 18 adjacent the tap 6 for the tea. The tap 6 may be linked to a valve controlling the delivery from 16, so that milk and sugar are delivered at the same time as the tea, or the sugar metering means may be arranged to function later than the milk means, so that sugar may be omitted if desired.
Patent GB-712061-A (GB)
Title: Improvements in or relating to photographic type-composing machines
IPC: B41B17/10
Filed: 1952-01-11
Abstract: 712,061. Photographic type-composing. HIGONNET, R. A. E., and MOYROUD, L. M. Dec. 22, 1952 [Jan, 11, 1952], No. 917/52. Class 98(1) In a photographic type-composing machine, a matrix member comprises a carrier bearing a fount of master characters and a number of scanning slits each in precise spatial association with a particular master character, the carrier being adapted to carry the master characters successively and continuously through a projection position, a light source positioned to illuminate the scanning slit associated with a selected master carrier as it passes through the projection position, and an optical system located to receive light from an illuminated scanning slit and to direct an image thereof on to its associated master character so that the image scans the character as it passes through the projection position and forms a succession of partial images of the character on a photographic surface, the partial images together constituting a complete image of the character. As shown, the master characters 20 are formed on a disc 2, and the scanning slits 12 are formed on a disc 4. Both discs are secured to a shaft 6 driven continuously by a motor 8, and preferably the characters and slits are formed on the discs in the required relation after the discs have been secured to the shaft. A shutter 14 opens while a selected character is passing through the projection position to illuminate the associated slit 12 by means of a lamp 10 and a condenser lens 16. An image of the slit 12 is formed by an optical system 18 on the selected character, and during the movement of the character through the projection position it is scanned by the slit image and so progressively projected by a lens 22 on to a photographic surface 24. When the system 18 is a simple lens system, the slit image moves over the character in the opposite direction to the character at a speed depending on the magnification of the slit. The character image will, in general, be distorted, and the master characters are therefore compensatingly distorted so that undistorted images result. By using a different optical system with reflectors, the slit image may be made to move in the same direction as the characters. The lenses 22 and 18 may be interchangeable with other lenses in turrets to produce different sizes of characters, and also to produce different styles, e.g. italic or condensed, from a single set of master characters. Several founts of master characters may be accommodated on one disc, using the fount-changing arrangement described in Specification 706,690. The slits may be formed on the same disc as the characters, the optical system having reflectors to reflect the light back on the disc. In this case a reflector may be movable to make use of two founts on the same disc. Specifications 669,531, 669,556, [Group XL(b)], and 669,609 also are referred to.
Patent GB-489601-A (GB)
Title: Improvements in and relating to pipe couplings
IPC: F16L27/113
Filed: 1938-01-11
Abstract: 489,601. Pipe joints. PATEX SOC. ANON., and KREIDEL, H. Jan. 11, 1938, No. 947. [Class 99 (i)] A helical spring f is held within a tubular coupling member a and presses against the flanged ends b<1> of pipes b and urges them against resilient rings e which are held in the coupling member either by a turned-over portion a<2> or by a coupling nut a<1>, the arrangement being such as to allow the pipes to be tilted with respect to the coupling member. The coils of the spring may gradually decrease in diameter from the middle towards the ends at which they bear against the pipe flanges, or when only one pipe end is coupled to the coupling member the spring may steadily decrease in diameter from the end opposite the flanged pipe end. In a modification, only one pipe end is attached to the coupling member.
Patent HK-10482-A (HK)
Title: Electronic timer device
IPC: G04G9/00
Filed: 1982-03-04
Abstract: 1528700 Electronic timer DAINI SEIKOSHA KK 25 Nov 1976 [27 Nov 1975] 49227/76 Heading G3T An electronic timer particularly for games, comprises down-counters 13, 14, 15, Fig. 3, the counter 15 serving to memorize a 10 minute half-time rest period while counters 13, 14 memorize 40 min and 20 min periods respectively. A switch 32 is operable to select either the counter 13 for timing each half of a football match or the counter 14 for timing basketball, and accordingly a display portion 5, Fig. 1, is activated to show either a footballer or basketball player in action. A digital display of remaining time is given and an alarm generator 23 (e.g. a buzzer) is activated when the display shows 00.00. The counting sequences are controlled by a shift register 22. With switch 32 closed to select basketball counter 14, a switch 18 is momentarily closed at the start of a timing period thus providing a shift pulse so that output Q 2 of SR 22 becomes "1". The resulting output of AND 30 releases a reset on counter 14 which begins counting 1 Hz pulses from a frequency divider 11 fed by an oscillator circuit 10. At the end of the 20 min period, the counter 14 produces a signal which causes activation of the alarm and shifts SR 22 output to Q 3 . Thereby counter 14 is reset and the reset on counter 15 is released so that it begins to count the 10 min interval at the end of which counter 15 likewise produces a signal to shift SR 22. Thereupon counter 14 begins to time the second half of the game. The counting of any period can be temporarily interrupted by opening a switch 12.
Patent HK-24495-A (HK)
Title: Document
Inventor: ANTES GREGOR
IPC: B29C59/02
Filed: 1995-02-23
Abstract: A document with an embossed macroscopic structure and acting through optical diffraction is disclosed. The structure, which serves as a security element comprises a plurality of surface portions with predetermined relief structures having spatial frequencies of over 10 lines/mm. Each surface portion is different from directly adjoining surface portions and at least some of the surface portions have a maximum dimension of less than 0.3 mm. To the naked eye, the pattern of surface portions on the document appears as a mesh of dots and lines. However, to an examiner with a magnifying device, the dots and lines appear as numbers, characters or other graphic features.
Patent HK-35896-A (HK)
Title: Improved slip cap for cannula use
Inventor: PYRET THOMAS W
IPC: A61D1/02
Filed: 1996-02-29
Abstract: An applicator for administering a veterinary pharmacological composition comprises a container having a cannula extending therefrom and a two-piece cap for releasably covering the cannula. The cap has an internal seal for sealing the cannula against leakage and contamination.
Patent HK-91889-A (HK)
Title: Three-phase power factor controller with induced emf sensing
Inventor: NOLA FRANK JOSEPH
IPC: H02J3/18
Filed: 1989-11-16
Abstract: A power factor controller for an A.C. induction motor 10 comprises thyristor switches 110, 111 and 112 connected in series with the motor, phase detectors 122, 124, and 126 for sensing the motor current and voltage and providing an output proportional to the phase difference between the motor voltage and current, and a control circuit, responsive to the output of the phase detector and to a power factor command signal, for controlling switching of the thyristor. The invention involves sensing the induced EMF produced by the motor during the time interval when the thyristor is "off" and for producing a corresponding feedback signal for controlling switching of the thyristor. The sensed EMF is also used to enhance "soft" starting of the motor.