baber/WOPTO huggingface dataset:
Patent GB-280330-A (GB)
Title: Method of and means for testing the speed of photographic shutters
IPC: G03B9/58
Filed: 1926-09-23
Abstract: 280,330. Houghton-Butcher Manufacturing Co., Ltd., Denniss, A. J., and Newley, F. P. Sept. 23, 1926. Shutters.-A series of objects made successively available at a known speed is photographed through the shutter, and the shutter speed is calculated from the number of impressions recorded. The " objects " may comprise a succession of light flashes projected either directly into the camera or reflected from a row of bright objects traversed at a known speed by a beam of light. In the apparatus shown, a framework A supports at one end a cylinder B, which may be rotated at a constant known speed by a motor C, and carries round its curved surface a series of reflectors equidistantly spaced which serve in succession to traverse a beam of light, projected from a lamp D, across a series of reflectors E arranged on an arcuate support F concentric with the camera G carrying the shutter to be tested. A sensitive surface in the camera records a line of separate impressions, the number of which depends on the speed of the shutter. A lightexcluding cover may be carried by supports H. For shutters of different speeds, the speed of rotation of the cylinder B may be varied as by change-gear between the cylinder and the motor C. To facilitate counting, every fifth or tenth reflector E may be made taller than the rest- The reflectors E may be arranged in groups in different planes in order to produce vertically displaced bands of impressions on the sensitive surface, and such an arrangement would indicate the variations in speed of a focal plane shutter at different parts of its travel. A modified apparatus is described in which the reflectors E are illuminated by a beam from a revolving lantern provided with a series of condensing lenses.
Patent GB-1341004-A (GB)
Title: Preparation of polymeric esters
IPC: C08G65/329
Filed: 1970-05-15
Abstract: 1341004 Polymers having pendant ester side chains NIPPON OIL SEAL INDUSTRY CO Ltd 10 Dec 1970 [11 May 1970] 23590/73 Divided out of 1339556 Headings C3P and C3R [Also in Divisions B5 and G2]  Polymers having pendant side chains of the formula in which R is a divalent aliphatic radical, R<SP>1</SP> is H or CN, R<SP>2</SP> is a monovalent substituted or unsubstituted aromatic group (including heterocyclic aromatic groups), and a and b are each 0 or 1, are prepared by reacting a polymer containing pendant groups of the formula -RX (in which X is halogen) in an aprotic polar solvent with a carboxylic acid salt of the formula (in which M is ammonium or alkali metal). The starting polymer may be a homopolymer or copolymer of epichlorohydrin, vinyl chloroacetate, 2-chloroethyl vinyl ether, 2-chloroethyl acrylate or 33-bis(chloromethyl)-trimethylene oxide. Solutions of the polymer products, many of which are photo-sensitive, can be used to cast films on substrates.
Patent GB-424585-A (GB)
Title: Improvements relating to frame construction for buildings
IPC: E04B1/34
Filed: 1933-08-24
Abstract: 424,585. Floors. COCKING, W. C., Troutbeck, Otford, Kent. Aug. 24, 1933, No. 23598. [Class 20 (iv)] A frame construction for buildings comprises main beams H, supported by columns C, and a series of panel beams such as J, K, L so arranged that the juncture of the beams K is near the point of support of the main beam, that of the beams K is near the point of the beams J, and so on towards the centre space of the panel. This arrangement reduces bending movements on the beams so that these need not be of greater depth than that of the floor. The beams may be formed of steel or reinforced concrete.
Patent GB-402202-A (GB)
Title: An improved machine for defleshing sisal leaves and like fibrous material
IPC: D01B1/22
Filed: 1932-08-23
Abstract: 402,202. Defleshing sisal leaves &c. HOLLOWAY, G. F. T., 136, Moore Road, and CARTER, R., 84, Clark Road, both in Durban, Natal, South Africa. Aug. 23, 1932, No. 23617. Convention date, Sept. 28, 1931. [Class 120 (i).] In a machine for defleshing sisal leaves and like fibrous material, of the kind comprising a series of pairs of crushing rollers 9, 10, 11, Fig. 1, from which the material is passed to drawing or scraping rollers 12 driven at a higher peripheral speed, the first set of crushing rollers 9 are fluted or grooved as at 28, Fig. 4, while the rollers 10, 11 are formed with axial and circumferential V-grooves 38, 29, Figs. 6 and 7. The scraping rollers 12 are provided with buttress tooth projections 30, Fig, 8. The spacing of the rollers 12 from the rollers 11 is less than that between the rollers 9, 10 and 10, 11, the rollers 11 acting as feeding and holding rollers for the scraping operation by the rollers 12. The scraping rollers 12 are geared together by spur wheels 12a, 12b and are driven through chain pulleys 22, 23, while the rollers 9, 10, 11 are driven through chain pulleys 24, 25 and spur wheels 9a, 10a, 11a, 9b, 10b, 11b coupled by idlers 13-16. Springs 7 are interposed between the bearings of each roller pair. Specification 367,116 is referred to.
Patent GB-425899-A (GB)
Title: Method for carbonisation of all kinds of cellulose pulp waste lyes
IPC: D21C11/12
Filed: 1933-08-25
Abstract: 425,899. Destructive distillation of cellulose residues. KALB, L., 19, Franz Josefstrasse, and STRUPP, E., 6, Siegfriedstrasse, both in Munich, Germany. Aug. 25, 1933, No. 23655. [Class 55 (ii)] Hydrocarbons such as tar oil, acetone, butanone, methyl alcohol, are obtained by treating cellulose pulp waste lyes in a cyclic process comprising the following steps : (1) concentrating the lye in vacuum evaporators 3, (2) agglomerating the concentrated lye with a solid residue obtained in the last stage of the preceding cycle, and which comprises mainly lime, in a kneading apparatus 8, (3) forming the agglomerated material into briquettes in a press 10 ; (4) subjecting the briquettes to destructive distillation in a retort 12 by direct contact with heating gases to obtain the desired hydrocarbons together with a solid residue ; (5) feeding the residue to a crusher 14, before or after removing the carbon on the grate 15 of a steam boiler 16, and returning it to the kneading apparatus as in stage (2). Acidic lyes are neutralized by the addition of part of the solid residue before the concentration step. Steam obtained from the boiler 16 may be used in the evaporators. The heating gases which are supplied to the retort at a temperature of about 500‹ C., are then stripped in a condenser 20 of the desired hydrocarbons, cleaned in a washer 23 by bubbling through solvent naphtha, mixed with air supplied through a pipe 25 and with hot waste gases through a pipe 24 and finally burnt in a chamber 18 before re-admission to the retort. The residue and the lye may be mixed in the proportion of 4 to 1 by weight.
Patent GB-1527966-A (GB)
Title: Process for the production of acyl cyanides
IPC: C07D307/06
Filed: 1977-06-03
Abstract: 1527966 Acyl cyanides DEUTSCHE GOLD - UND SILBER SCHEIDEANSTALT 3 June 1977 [25 Feb 1977] 23666/77 Heading C2C  Acyl cyanides of the formula wherein R is a substituted phenyl group or an optionally substituted C 1-18  alkyl, C 3-8  cycloalkyl, naphthyl or heterocyclyl group, are obtained by reacting acyl halides (RCOX where X is a chlorine or bromine atom) with cuprous cyanide, the reaction being carried out in a mixture of 1 to 10 parts by weight of an inert carboxylic acid nitrile and 0À5 to 20 parts by weight of an inert organic solvent, at 50 to 180 C. Novel acyl cyanides of the formula may be obtained by the above process.
Patent GB-418778-A (GB)
Title: Improvements in means for modifying the transmitted light in moving lens cinematograph machines
IPC: G03B41/08
Filed: 1933-08-25
Abstract: 418,778. Kinematograph apparatus. JOHN, W. E., National Bank Building, Market Street, Johannesburg, South Africa. Aug. 25, 1933, No. 23690. [Class 97 (i).] In continuous-feed apparatus having a single series of lenses moving with the film, and an exposure aperture, elongated in the direction of movement, at which several lenses are exposed simultaneously, a rotating disc, having spiral slots of such width that they reduce the amount of light passing through the lenses, is interposed in the light path and driven with the mechanism ; adjustable means for limiting the width of the aperture, and groups of colour filters contained within the slots, may be provided. As shown, the apparatus comprises a fixed lens 6, and lenses 8 in holders 7 moved through a straight guide 14 parallel with a long exposure aperture 4 in the manner described in Specifications 290,372, 319,302, and 334,033, [all in Class 97 (i)]. A disc 17 having spiral slots 20 is arranged between the lenses 6, 8, on a shaft 18, and is rotated by gearing 19 from a shaft 12 driving the lens system so as to provide narrow apertures moving with the lenses. Longitudinal shutters 21, 22 are adjustable by racks 24, 25, and a pinion 23 on a shaft rotatable by a hand wheel 26, to restrict the width of the light aperture. The colour filters may be arranged in the slots in recurring groups. According to the Provisional Specification, the widths of the slots, when provided with colour filters, may be variable, and a flexible endless band, driven by a sprocket and having circular apertures, may replace the slotted disc.
Patent GB-1437615-A (GB)
Title: Vehicle levelling system
IPC: B60G17/015
Filed: 1973-05-17
Abstract: 1437615 Controlling vehicle suspension height MONROE BELGIUM NV 17 May 1973 [12 June 1972] 23692/73 Heading B7D A vehicle suspension levelling system includes at least one levelling unit 10 comprising a valved damping piston 32 reciprocably mounted in a cylinder 12 and connected to a piston-rod 22, a free piston 42 or a deformable diaphragm separating an oil chamber 44 from a gas chamber 46, and a passage 62 in the pistonrod 22 through which oil is selectively supplied to the chamber 44 by external level control means responsive to changes in attitude between the sprung and unsprung portions of the vehicle. As shown in Fig. 2 the level control means comprises a sensing switch 56 operated by relative movement between sprung and unsprung portions 59, 60 to energize a pump 52 for supplying oil to or removing oil from the unit 10. Flow of oil to and from the unit 10 may be controlled by a restricted orifice. The level control means may alternatively include a sensing valve which supplies oil to the unit 10 from an hydraulic circuit provided on the vehicle for operating ancillary hydraulic servo devices or accessories. In a strut type suspension, Fig. 5, the piston-rod 22 of the unit 10 is connected to the vehicle body 214 and the cylinder 12 is received in a housing 218 carrying a stub axle 222.
Patent GB-142025-A (GB)
Title: Improvements in and relating to packing cases for bottles and the like
IPC: B65D85/30
Filed: 1919-09-26
Abstract: 142,025. Durell, B. C., and Roberts, F. R. Sept. 26, 1919. Partitioned cases.-A packing-case a for bottles, jars, &c. is formed with grooves a1, in which can be slipped one or more,sets of three vertical parti. tions b, c, d, each having horizontal rows of holes, the end partitions of each set receiving the bodies of the bottles &c., and the centre one, which is divided into four horizontal sections through the centre lines of the holes, receiving the necks of the bottles and having twice the number of holes in each end partition. For packing jars &c., the centre partition is made of extra thickness to accommodate the abutting tops of the jars, and has then the same number of holes as the end partitions. The bases of the bottles can be butted against the ends of the case; or packing-strips can be interposed between them and the ends.
Patent GB-314005-A (GB)
IPC: D03D51/28
Filed: 1928-08-17
Abstract: 314,005. Fuchs, G. June 21, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Stop-motions, warp.-Detector-healds are provided with upper and lower loops d having inclined parts to cause them to move sideways into contact with bars f, p, a heald corresponding to a broken warp also making contact with a bar g insulated from the bar f. To ensure good contact with the bars, the healds are provided with upper and lower weights o, o<1> detachably secured to the healds or formed of stranded wire and shaped and secured by solder, the weights serving also to space the healds. The bars p, fare electrically connected to a contact m carried by the heald frame and adapted to make contact with a fixed contact n, the bar g being connected to a contact m<1> for completing the circuit through a contact n<1>. When a warp breaks, and the heald frame is moved downwardly, the corresponding heald is not raised by its respective warp thread and makes contact with the bar g to complete the circuit to stop the loom. The contacts m<1>, m may be fixed while the contacts n<1>, n may be secured on the heald frames. The upper and lower ends of the healds and the contact bars are protected by guards q. The healds may be made of sheet steel and be arranged to close the circuit indirectly.
Patent GB-456185-A (GB)
Title: Apparatus for aiding the hearing of partly deaf persons
IPC: H04R1/10
Filed: 1935-08-24
Abstract: 456,185. Instruments for deaf persons. THIRSK, T., 18, Constance Road, West Croydon. Aug. 24, 1935, No. 23792. [Class 40 (iv)] In a bone-conduction receiver the oscillating member is attached to a spring-like band which is employed to support the receiver on the head of the user. As shown, the oscillating button 1 of the receiver 2 has an annular slot 3 engaged by a fork 6 attached to the head-band 4 by a rivet 5 which is provided with an extension 5a having a forked extension 7 engaging the casing 2<a> of the receiver. Alternatively the end of the spring band may be secured to the oscillating member by a screw or by a socket formed on the button.
Patent GB-1035079-A (GB)
Title: Piezoelectric tuned coupling elements
IPC: H03H9/58
Filed: 1965-06-03
Abstract: 1,035,079. Piezo-electric filters. SONUS CORPORATION. June 3, 1965 [June 3, 1964], No. 23799/65. Heading H3U. A tuned coupling between a source 28 and a load R L  comprises two similar polarized ceramic piezo-electric transducers 10, 12 coated with silver electrodes 16, 18 and 20, 22 and bonded to a common foil conductor 14 by extremely thin films 24 and 26 of a cyanoacrylate monomer adhesive. Electrical contact between the conductor 14 and electrodes 16, 20 is assured by the small projections usually present on the surfaces of those elements, which projections penetrate the films 24, 26. To improve the electrical conductivity the adhesive may be loaded with a conducting powder. In a modification (Fig. 2, not shown), a single cyanoacrylate monomer adhesive film 46 acting as an insulator is interposed between conductors 42, 44 soldered to electrodes 32, 38 of the transducers 30, 36.
Patent GB-1084488-A (GB)
Title: Improvements in or relating to baking trays
Inventor: FORSTER WILLIAM EDWARD
IPC: A21B3/13
Filed: 1966-05-27
Abstract: 1,084,488. Baking trays. METAL BOX CO. Ltd. May 27, 1966, No. 23836/66. Heading A4D. A baking tray made of cardboard or similar material foil-lined, at least on the side which is to form the interior of the tray, comprises a bottom 1, side walls 2, 3, and end walls 4, 5, which are upstanding from the bottom, being folded upwards about scores or creases 6, 7, 8, 9, Fig. 1, 'the side and end walls being retained in the upright position by end flaps 10, 11 which extend from the side and end walls respectively and are connected by scores or creases 12, the flaps 10 being secured in the upright position, one to another, e.g. by interlocking, the flaps 10 being provided with slits 15 for this purpose. The tray may be provided with top flaps 16, 17 and may also be provided with tray collapsing scores or creases 18 to permit the tray to be collapsed for storage or transport. In a modification the top flaps 16 and 17 are omitted.
Patent GB-296433-A (GB)
Title: Electrical apparatus for measuring the acuteness of hearing
IPC: H04R1/44
Filed: 1928-08-18
Abstract: 296,433. Siemens & Halske Akt.- Ges. Sept. 1, 1927, [Convention date]. Ear instruments and hearing appliances. - In testing acuteness of hearing, a mechanical vibrator of small amplitude and low decrement is employed to produce an alternating current which is amplified to control a telephone or loud speaker. In the apparatus shown the vibrator consists of a tuning fork 1 between the arms of which is arranged an electromagnet 5 the winding of which is connected to the input. of a three valve resistance-capacity coupled amplifier. In the plate circuit of the last valve are connected a loud-speaker 6 and a meter 7. The vibrator is initially excited by momentarily depressing a switch 3 to complete the circuit of an electromagnet 2 through the valve filament battery 4. A contact disc 10 is at this moment in such a position that the grid of the last valve is connected to zero potential by a contact. piece, 12. The valve therefore acts as a. rectifier the magnitude of the rectified current being indicated on the meter 7. As soon as the current has fallen to a predetermined value indicated by the mark 14, a key 8 is depressed by hand or automatically by means of a relay, setting a stop-watch 9 in operation and simultaneously actuating the disc 10 so as to short-circuit the meter by a contact piece 11, and to cause the contact piece 12 to bridge. contacts 18 so as to connect the grid of the last valve to negative potential suitable for distortionless amplification. When the sound has diminished to the threshold of audibility for the patient, the key 8 is again depressed to stop the watch. The amplitude can then be calculated from the indicated time, the rate of decrement of the vibrator 1 being known; the stop-watch may be calibrated to indicate sound intensities. The stopwatch and the disc 10 may be restored to zero position by a further depression of the key 8. The sounds may be rendered intermittent by a clockwork 25 which periodically tilts an annular tube containing a high resistance 26 connected across the electromagnet 5 and causes it to be gradually short circuited by a body of mercury. A number of vibrators of different pitch are provided with any one of which the electromagnet 5 may be coupled. The electromagnet 5 is of such dimensions that electromotive forces induced by the vibrator 1 when vibrating in higher modes are balanced out. A microphone may be employed instead of the electromagnetic system 5.
Patent GB-842004-A (GB)
Title: Improvements in or relating to camera flashguns
IPC: G03B15/04
Filed: 1956-08-03
Abstract: 842,004. Photographic cameras. KUERBI, M., KUERBI, E., and NIGGELOH,. C., [trading as KUERBI & NIGGELOH]. Aug. 3, 1956 . [Aug. 3, 1955], No. 23955/56. Class 98(1) [Also in Group XXXVI] In order that a camera flash gun may be used with different constructions of cameras it is provided with a plurality of connecting points for the firing circuit connected in parallel. As shown a flash gun has one connecting point constituted by a push-on foot 1 and a spring loaded contact pin 2 extending through an aperture in the foot to contact a member 14 projecting through the camera shoe 13 and connected with the shutteroperating mechanism. The other connecting point is formed by a two pin socket 3, 4 for receiving a connector plug 17 which in a different form of camera is connected by cable 6 to the shutter operating mechanism. The foot 1 serves as an earthing contact and a switch 7 is provided between it and contact members 15, 16 in the firing circuit to prevent the formation of a short circuit when plug 17 is used. A clamping bush 11 in the base of the flash gun is rotatable by a lever 12 so as to be axially displaced to clamp the camera shoe 13 between the bush and push-on foot.
Patent GB-747713-A (GB)
Title: Improvements in or relating to record changing mechanisms for gramophones and the like
Inventor: RAE ALEXANDER JAMES
IPC: G11B17/16
Filed: 1950-09-30
Abstract: 747,713. Gramophones. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Sept. 10, 1951 [Sept. 30, 1950], No. 23960/50. Class 40(2) Tn a record changer in which the records are supported in a pile above the turntable and a member 123 is provided which in one position engages the pile of records and in another position is turned away from the turntable to stop automatic operation, the arrangement is such that in the second position the automatic operation is only partially disabled, and a single record can be manually put in position and the transducer moved inwards. When the record is played the automatic mechanism stops the machine and moves out the transducer. The member 123 is supported above record platform 105 on a shaft 124 whose lower end 125 can tilt a member 70 and 85 when no records hold up the arm 123. This disables the automatic mechanism as member 70 which moves the transducer inwards when required is then out of the path of its actuating pin 99 on the control disc 90. This occurs when the arm 123 is rotated vertically about its support away from the turntable 26 to a position where it can fall to a lower level. A sliding delaying member 127 prevents the arm 123 and its shaft from falling until the last record of a pile has been played. If a record is now placed on the turntable manually and the transducer arm moved in, the driving motor, which is controlled by the movement of the transducer starts. At the end of playing the record a dog clutch 37, 38 engages and the automatic control disc 90 moves. A linkage 140, 60, and 63 then moves to swing arm 70 and turn the transducer out. As the lever 70 cannot be swung to bring the transducer in again while shaft 125 holds it from its pin 99, automatic operation does not start. Specifications 667,768 and 747,715 are referred to.
Patent GB-480616-A (GB)
Title: Improvements in or relating to invalid bed rests, or the like
IPC: A47C20/02
Filed: 1936-09-02
Abstract: 480,616. Bed - rests. McKINNELL, J., and N. A. P. LATEX PRODUCTS, Ltd. Sept. 2, 1936, No. 24031. [Class 52 (ii)] In a bed-rest of the kind comprising an angularly adjustable back support with arm rests k pivotally connected thereto on a horizontal axis, one or both the arm rests is or are pivoted so as to swing outwardly about a vertical axis in addition. The back-rest is hinged to bearers c and supported by struts e engaging 'blocks h on the back-rest. The arm rests k are provided with sockets l which drop over the up-turned ends of a bar j rotatably engaged in notches in plates i on the back-rest and in similar notches in the bearers c. A seat portion may be provided, and a detachable pillow n. The arm rests may support a tray p.
Patent GB-532206-A (GB)
Title: Improvements in or relating to lubricators for railway vehicle axles
IPC: B61F17/08
Filed: 1939-08-22
Abstract: 532,206. Lubricators. MOONEY, D. E. Aug. 22, 1939, No. 24095. [Class 12 (iii)] A lubricator for railway vehicle axle boxes comprises a pad 1 having capillary feeders 1<SP>x</SP> mounted on a cradle 6 which is supported on a base frame 5 resting on the bottom of the box by elliptical spring strips 3 and semi-elliptical spring strips 4 and is held in position by spring arms 7 or a transverse spring member engaging the sides of the box.
Patent GB-1204240-A (GB)
Title: Improvements in or relating to sheet gripping devices
Inventor: SVANTESSON AKE
IPC: B41F21/04
Filed: 1968-05-21
Abstract: 1,204,240. Sheer gripper. A. SVANTESSON. 21 May, 1968 [23 May, 1967], No. 24164/68. Heading B6C. A sheet 10 to be printed on is gripped between a plate 1, which constitutes a fixed jaw, and movable jaws 2, each jaw 2 protruding through a respective aperture 7a in a hood on the underside of plate 1, and there being as many apertures as movable jaws. The movable jaws 2 are opened by rotation of a cam-shaft 9, so that each turns on its pivot 8, and when shaft 9 is returned to its original position each is closed by a spring 11. The printing press may be a silk-screen press. Rounding of edge 1a reduces the possibility of damage to the silk screen if plate 1 and the screen touch and plate 1 protects the parts of the device below it from dripping ink.