baber/WOPTO huggingface dataset:
Patent GB-674263-A (GB)
Title: Improvements in or relating to arrangements for regulating the frequency of discharging loose granular bulk material from the weighing receptacles of automatic-feed weighers
IPC: G01G19/00
Filed: 1950-01-04
Abstract: 674,263. Mechanical make and break switches. BUHLER, G. Jan. 4, 1950. [Jan. 10, 1949] No. 247/50. Class 38 (v). [Also in Group XVIII] The weighing receptacles 24, Fig. 11, of a series of automatic feed weighers are periodically discharged by a control device, Figs. 1, 2, which comprises a series of co-axial discs 4, each studded with a different number of cams 5, driven by a motor 1 through an infinitely variable gear 2 and a shaft 3 ; and a plurality of bars 7 which have adjustably mounted thereon fingers 9 which are engaged by the cams 5 of that disc against which the finger has been positioned so that the bar 7 is periodically rotated against the action of a spring 12 and closes discharge operating contacts 16 at a frequency determined by the number of cams on the disc. The sequence of operation is as follows, on engagement of a cam 5 with a finger 9 arm 14 closes one pair of contacts 16, Fig. 11a, and thus closes a circuit from a switch 27 through a control relay 19 and a mercury switch 23 on the weighing receptacle ; relay 19 locks up over contacts 19<SP>11</SP> and mercury switch 23, closes a circuit over contacts 19<SP>111</SP> through a magnet 11 which lifts the bar 7, as on the right hand side of Fig. 1, so raising the finger 9 out of the plane of the cams thus opening contacts 16 and preventing further closing thereof until the magnet 11 is de-energized, and finally closes a circuit over contacts 19<SP>1</SP> for a magnet 25 which allows the receptacle to tilt and empty, and, simultaneously, to break the locking circuit over the mercury switch 23 thus de-energizing the magnets 25 and 11, and returning the parts to normal. If the switch 23 is open at the instant contacts 16 are closed, relay 19 is not operated and the bar 7 is not raised, thus continued rotation of the disc further rotates bar 7 and causes it to also close contacts 17 and so establish a circuit through the associated alarm relay 20 which locks up over contacts 20<SP>11</SP>, closes a circuit for an alarm bell 26 over contacts 20<SP>1</SP> and closes a circuit for the associated alarm lamp 21 over contacts 20<SP>111</SP>. By depressing the respective push button 22 the circuit for the alarm relay 20 is interrupted and the alarm cut out.
Patent GB-765183-A (GB)
Title: Improvements in or relating to loudspeakers
IPC: H04R1/28
Filed: 1954-01-05
Abstract: 765,183. Sound directing appliances. CHAVE, D. M., [trading as LOWTHER MANUFACTURING CO.]. Jan. 4, 1955 [Jan. 5, 1954], No. 276/54. Class 13. [Also in Group XXXIX] The higher frequencies are radiated predominantly from the front of a loud-speaker 13 through a short horn E and the lower frequencies predominantly from the back of the speaker through an acoustic pressure chamber F coupled to a longer horn G. The highest frequencies are reproduced by an additional cone 10a which may have a higher frequency diffusing device as described in Specification 765,184. Undesirable resonances in the chamber F may be damped by one or more baffles 17, Fig. 3. In a corner cabinet, Fig. 2, the loudspeaker points vertically downwards. The pressure chamber F is a stout metal box opening at 15 into a long folded horn 16 defined by an array of walls and partitions 28. These partitions may be plane since it has been found that strictly exponential expansion over short lengths is not necessary in the long horn 16.
Patent GB-338055-A (GB)
Title: Improvements in or relating to bath tub and like mats
IPC: A47K3/00
Filed: 1930-01-03
Abstract: 338,055. Brewer, F. C. Jan. 3, 1930. Mats.-Rubber or rubber composition bath mats for use in bath tubs &c. have vacuum cups formed on their underside comprising domeshaped members 13 terminating in ring-shaped members 16 encircled by grooves or channels 17. When the mat is pressed upon, projecting studs 15 limit the downward movement of the members 13 as shown, the members 16 tilting so that the inner edges of their underfaces 16<a> contact with the bath floor &c., thus giving a good vacuum and non-slipping effect. Corrugations 19 may be formed on the undersurface of the mat and ribs 10<a> on its upper surface. The mat has openings permitting ready passage of water and one of these may be reinforced and utilized for suspending the mat from a support.
Patent GB-100478-A (GB)
Title: Improvements in or relating to Military Dress.
Inventor: EKKER EVERT CORNELIS
IPC: A41D29/00
Filed: 1916-01-08
Abstract: 100,478. Ekker, E. C. May 20, 1915, [Convention date]. Drawings to Specification. Multi-coloured wearing - apparel for particular purposes.-Military dress has red, yellow, and blue stripes, dots, squares, &c., alone or on a greyish background, so as to give a distinctive pattern if seen at a moderate distance, but indistinguishable from the surroundings if seen at a great distance.
Patent GB-763687-A (GB)
Title: Improvements in and relating to dental drills
IPC: B23K31/02
Filed: 1955-01-06
Abstract: 763,687. Dental drills. AKTIEBOLAGET DENTATUS. Jan. 6, 1955 [Jan. 13, 1954; Dec. 14, 1954]. No. 430/55. Class 81(2) In dental drills having hard metal or carbide tips, the tip 6 is mounted on a reduced axial extension 3 on a steel shank 2 and the hole 8, by means of which it is so mounted, extends throughout its length. This is to avoid air being trapped and so weakening the joint made by brazing the tip in position. If the central extension 3 does not extend for the entire length of the tip, the outer end of the central bore may be filled with hard metal or grains held in place by the brazing metal.
Patent GB-605815-A (GB)
Title: Improvements in means for securing tools on tool bars of agricultural machines
IPC: A01B35/22
Filed: 1946-01-05
Abstract: 605,815. Agricultural machines. NUFFIELD MECHANIZATIONS, Ltd., and MERRITT, H. E. Jan. 5,1946, No. 467. [Class 6(i)] [Also in Group XXV] The end of a tool or bracket B to be attached to a substantially rectangular tool-bar A of an agricultural tractor or its associated implement frame is shaped to engage with local surfaces x, y, z on three sides of the tool-bar and is secured by a clamp G engaging with the fourth side of the bar. The clamp is provided with a pair of feet 1 which embrace the sides of the stem of the bracket or tool. In a modification the tool-bar may be inclined so that the diagonals of its cross-section are vertical and horizontal.
Patent GB-283218-A (GB)
Title: Improvements in and relating to cooling tanks for electric machines
IPC: H01F27/12
Filed: 1928-01-06
Abstract: 283,218. British Thomson-Houston Co., Ltd., (Assignees of Compagnie Franþaise pour l'Exploitation. des ProcÚdÚs Thomson- Houston). Jan. 7, 1927, [Convention date]. Jointing pipes and tubes to headers.-Radiator tubes A, of flattened, oval or like section, for the tank C of an electric transformer &c., are formed with rounded ends to receive round branch tubes B connecting them to the tank. The ends of the tubes are first opened to the shape shown in Fig, 3, and then opposite edges are flattened to produce the shape shown in Fig. 4. The ends are then perforated or cut as shown in Fig. 5, and the branch tubes welded in. The Specification as open to inspection under Sect. 91 (3) (a) comprises also arrangements of tubes with rounded ends welded into flat headers connected by single round tubes to the tank, and short flattened tubes bent but not rounded at the ends and secured directly to the tank. This subject-matter does not appear in the Specification as accepted.
Patent GB-111195-A (GB)
Title: An Improved Form of Combination Oil Filter and Pressure Release Valve for Adaptation to existing Types of Internal Combustion Engines.
Inventor: CHINN CECIL GEORGE
IPC: F02K1/08
Filed: 1917-01-10
Abstract: 111,195. Chinn, C. G. Jan. 10, 1917. Force-feed lubricating; filtering lubricant.-In a pump lubricating-system for internal-combustion engines, an oil filter is combined with a relief valve. Oil forced into a casing at 2 passes through a wire-gauze filter 5 and leaves the casing by a duct 10. A relief passage 13 fitted with a valve 11 allows surplus oil to return to the base sump.
Patent GB-156617-A (GB)
Title: An alarm clock
IPC: G04B23/02
Filed: 1921-01-06
Abstract: 156,617. Compagnie Industrielle de MÚcanique HorlogÞre. Sept. 6, 1919, [Convention date]. Alarm mechanism; cases, clock.-The back of the casing k containing the movement a is formed by the gong which is a disc m<1> with folded periphery o. The disc is bolted to the backplate of the movement and the periphery dces not touch the case but constitutes the sounding portion of the gong.
Patent GB-571520-A (GB)
Title: Improvements relating to electric selective signalling systems
IPC: H04Q3/00
Filed: 1944-01-12
Abstract: 571,520. Automatic exchange systems. SIEMENS BROS. & CO., Ltd., and CHRISTIAN, D. A. Jan. 12, 1944, No. 612. [Class 40 (iv)] In a selector in which a number of outlets are tested simultaneously by an equal number of test relays, the relays are controlled by two chains of their own contacts which are arranged in reverse order so that any relay upon operation opens the operating circuit of later choice relays and the locking circuit of earlier choice relays. The invention is applied to a group selector of the motor-driven latch-magnet type which has four sets of wipers with corresponding test relays TA ... TD and switching relays HA ... HD and which is controlled by marking from a common or individual digit switch DS. The outlets of a group may appear anywhere in the selector banks, except that all the outlets in corresponding positions in the banks must belong to the same group. In Fig. 1, in which the selector is associated with a common control circuit by a coupling relay K, the selector is set in motion by the relapse of dialling relay C after the digit switch DS has been set by impulses, and the outlets of the group are marked in the bank M. The circuits of test relays TA ... TD are arranged as stated above, and their locking circuits include auxiliary relays UA ... UD which serve to connect up the corresponding individual switching relays HA ... HD and common switching relay H. A last-contact relay LC applies busy tone if no idle outlet is found. In Fig. 2 (not shown), in which the switch DS is individual, the operating windings of relays HA ... HD are included in the locking circuits of relays TA ... TD, their holding windings being in series with relay H. In Fig. 3, in which the switch DS is again individual, the operation of any test relay stops the selector by removing a short-circuit from relay E which energizes in series with the latch magnet, opens the operating circuits of relays TA ... TD and connects up relay H, and the last relay connects up the individual switching relay corresponding to the operated test relay.
Patent GB-303793-A (GB)
Title: Improvements in and relating to methods of mounting lathe chucks
IPC: B23B31/36
Filed: 1929-01-08
Abstract: 303,793. Pink, E. N., (Assignee of Br³ning, P.). Jan. 9, 1928, [Convention date]. Chucks.-In order to render serviceable chucks whose mounting on a lathe &c. spindle has become eccentric, a ring a is shrunk onto the body of the chuck c and is adjusted correctly on the face-plate d by four radial screws b. The securing bolts e are allowed play in the faceplate to permit the adjustment. Alternatively, the ring a may be shrunk on the face-plate and engaged with the chuck by radial screws or may be formed integral with the face-plate. When the ring is to be used with either three or four jaw chucks, two of the radial adjusting screws g, Fig. 4, are arranged less than 90‹ apart in order to be clear of the jaw-adjusting screws.
Patent GB-270371-A (GB)
Title: Improvements in or relating to sound-reproducing apparatus
IPC: H04R9/12
Filed: 1926-01-09
Abstract: 270,371. British Thomson-Houston Co., Ltd., Young, A. P., and Hutt, J. Jan. 9, 1926. Magnetic instruments.-Relates to sound recording and reproducing apparatus, comprising a stylus-lever carrying a member such as an armature or coil movable in a magnetic field. According to the invention, in order that the styluslever may be aperiodic, it is mounted without any spring control and is restrained by damping- means. The stylus-lever may carry a coil adapted to generate or to receive currents corresponding to sound-waves, the lever being operated by a reproducing stylus, or actuating a recording stylus as the case may be. Fig. 1<a> shows a device for reproducing sound electrically from a gramophone record, comprising a pair of C- shaped magnets 11, having adjacent air-gaps 12. The main portions 13 of the magnets are preferable of cobalt steel, and the limbs 14 of soft iron. A pancake coil 15 is mounted on a stylus-lever 16, pivoted at 18, the coil lying in the air-gaps. The upper end 23 of the lever is located in a chamber 24, filled with damping material such as cotton-wool, a screw plug 25 being provided for adjusting the pressure of the packing. In a modification, the damping-device is similar to that above described, but the magnet is potshaped, and the coil is modified accordingly, to lie in an annular air-gap. Fig. 3 shows a further construction, also having a pot-shaped magnet 11, the upper end of the stylus-lever 16, adjacent to the coil 15, carrying a plate 31 located between two washers 32. The damping pressure between the washers and the plate 31 may be varied by adjusting two clamping-plates 33, 34 by means of screws (not shown). In another modification, Fig. 4, a ring magnet 11 in a non- magnetic casing 38 has pole-pieces 26, 27 connected to opposite faces of the magnet by magnetic strips 41, 39 respectively. A coil 15, carried by the stylus-lever 16, lies in the annular gap between the pole-pieces and damping is provided by strips of rubber &c. 42 mounted in slots in the inner pole-piece 27 and acting frictionally upon the former carrying the coil. Alternatively, the material 42 may be mounted in the outer pole-piece 26. In a gramophone embodying the invention, a sounding-board or baffle of the kind described in Specification 231,421 may be provided.
Patent GB-114141-A (GB)
Title: Process for the Manufacture of Ingot Molds.
Inventor: WALKER JOHN BAYLESS
IPC: B22D7/06
Filed: 1918-01-11
Abstract: 114,141. Walker, J. B. March 12, 1917. [Convention date]. C a s t i n g processes; flasks; moulds. - Ingot moulds and like hollow castings are annealed after casting by removing a collapsible metal core-bar and expansible flask, leaving the casting to cool slowly in the sand core and mould. After casting, the core bar is collapsed, and the flask 11, with mould 22, casting 20, and core 21 is lifted away. The clamps 15 are then removed, allowing the flask 11 which is made in two parts hinged at 12, to expand slightly and be lifted away from the mould. Preferably the core bar and flask are of the type described in Specifications 114,142 and 112,616.
Patent GB-1244767-A (GB)
Title: Benzobisthiazoles
Inventor: CLECAK NICHOLAS JEFFRIES
IPC: C07D513/14
Filed: 1968-08-26
Abstract: 1,244,767. Methin, azamethin and azo dyes. INTERNATIONAL BUSINESS MACHINES CORP. 26 Aug., 1968 [18 Sept., 1967], No. 759/71 Divided out of 1,244,764. Heading C4P. [Also in Division C2] Methine, azamethine and azo dyes are of formulµ- (in which R is halogen or 1-4 C alkyl or alkoxy; R 2  and R 3  are both R 5 -(CH = CH) n -CH = N-, R 5 -(CH=CH) m - or R 5 -N=NR 5  is C 6 H 5 - or p-(CH 3 ) 2 N-C 6 H 4 -;   n is 0-3, m is 1-4). The methine and azamethine dyes are prepared by condensing an aldehyde with a compound in which R 2  and R 3  are NH 2  or CH 3  (see Division C2). The azo dyes are prepared by reacting N,N-dimethylaniline with the diazotization product of a compound in which R 2  and R 3  are NH 2 .
Patent GB-596967-A (GB)
Title: Improvements in the construction of electric discharge devices, and more especially thermionic valves, having vitreous envelopes
IPC: H01J19/52
Filed: 1941-12-01
Abstract: 596,967. Thermionic valves. M-O VALVE CO., Ltd., and BENJAMIN, B. [Representative of BENJAMIN, M.]. Dec. 1. 1941, No. 809. [Class 39 (i)] In order to support the electrode system of an electric discharge device against shocks acting in one direction only, the envelope is formed with a shoulder 7 against which one side of the edge of the mica disc 5 which locates the electrode system bears. The shoulder is formed by heating the envelope after assembly of the device, but before pumping. The joints between the leads 3 passing through the envelope and the stiffer internal leads 6 are preferably embedded in the envelope, or only just inside the inner surface, in order further to increase the resistance to shocks.
Patent GB-894152-A (GB)
Title: New phosphorus-nitrilo compounds
Inventor: HOFMANN EUGEN
IPC: C07F9/6581
Filed: 1959-01-08
Abstract: The invention comprises amine derivatives of phosphorus-nitrilo compounds of the formula PnNnX2n in which n is at least 3 at least one of the constituents X has the structure NR1R2 in which R1 is a branched chain alkyl group or a branched chain aralkyl group and R2 is either hydrogen or an alkyl or aralkyl group and any of the radicals X which do not have the said structure NR1R2 are halogen atoms, e.g. chlorine atoms.  Preferred compounds are those of the formula PnNn(NR1R2)2n and particularly those in which n is 3.  The compounds may be obtained by reacting a compound of the formula PnNnX2n in which n is at least 3 and X is a halogen atom, preferably chlorine with an amine of the formula NHR1R2 in which R1 and R2 are as defined above.  The process may be effected at room temperature but an elevated temperature, e.g. about 80 DEG C. is preferred.  An excess of the amine reactant is conveniently used and the reaction is preferably effected in the solution, e.g. in a solvent such as ether in which the amine hydrohalide formed is substantially insoluble, or in a solvent such as benzene in which the amine hydrohalide formed is moderately soluble.  In the latter case the liquid product of the reaction may be passed through a column of a cation exchange resin to convert the amine hydrohalide to free amine and excess amine and solvent then distilled off to leave the desired product.  An example is given for the production of the compound [PN(NHC13H27)2]3 from a mixture o branched chain isomeric tridecylamines (prepared as below) and phosphorus nitrilo chloride trimer.  Products in which one or more of the X constituents are halogen atoms are produced by using the stoichiometric proportion of amine there being substantially no unreacted amine to be distilled off.  The products are useful as heat stable and radiation resistant lubricants.  The mixture of branched chain isomeric tridecylamines used above is obtained by oxonation of mixed isomeric propylene tetramers to yield a mixture of tridecanols branched at any point in the chain except the a -carbon atom, amination of the said mixture and distillation of the product to yield a mixture of boiling range 126 DEG C. to 134 DEG C./25 mm. Hg.
Patent GB-1336024-A (GB)
Title: Electrophotographic device
IPC: G03G15/10
Filed: 1971-01-07
Abstract: 1336024 Liquid developing apparatus FUJI PHOTO FILM CO Ltd 7 Jan 1971 [9 Jan 1970] 867/71 Heading G2H A conductive belt 5 carries a sheet 2 through a tank (not shown) containing toner in a liquid carrier and toner is deposited on the sheet under the influence of an electrode 14; electrode 14 being divided into portions which are energized in turn as the sheet passes. This prevents toner deposition on belt 5 in areas which the sheet has passed or not yet reached. The apparatus is particularly intended for reversed development of electrostatic latent images although it may be used to uniformly coat a sheet for use as a donor member. Electrode 14 may comprise rollers (26), Fig.4 (not shown). The portions of electrode 14 may be energized with different potentials Fig.5 (not shown) to compensate for image decay. As shown, the leading edge of sheet 2 is sensed by an infrared detector 12' which keeps a magnetic recording head (19), Fig.3 (not shown) energized until the trailing edge passes. The recording head (19) magnetizes a tape (23) which passes a succession of reading heads (25) connected to respective switches 15 to control energization of the portions of electrode 14.
Patent GB-630372-A (GB)
Title: Improvements in or relating to photographic view finders
IPC: G03B19/18
Filed: 1947-01-10
Abstract: 630,372. View-finders for kinematograph cameras. AMPRO CORPORATION. Jan. 10, 1947, No. 900. Convention date, Jan. 12, 1946. [Class 98 (i)] The view-finder has axially spaced objective and eye-piece lenses, a flexible band having two transverse reaches crossing the optical axis adjacent each lens and a number of maskforming openings spaced along it and arranged in pairs that simultaneously register with the lenses, and means for moving the band lengthwise. As shown, the view-finder has a conventional eye-piece 19 and an objective 11, and the masks are formed as apertures 25 in an endless band supported on rollers 22, 23 and on a pair of idle rollers 24 rotatively mounted on a partition 14. Roller 23 is journalled on a plate 28 sliding on a channel member 38, spring-urged to the right in the drawings to maintain tension in the band. Roller 22 is fastened to a knob 29 journalled in the side 10 of the camera, and has sprocket teeth 33 engaging marginal perforations in the band, so that by turning the knob 29 any of the apertures may be brought intoregister with a large aperture 16 in a plate adjacent to the lens 11. A spring-urged plate 27, similar to the plate 28 and also sliding in the channel member 38, bears by its off-set edge 42 on two of four pins 35 on the roller 22, which may thus take up four positions only, in any one of which one of the apertures 25 is brought into position. Two sets of apertures 25 are provided ; each aperture of one set restricts the field of view to that obtained with the corresponding lens of a set of interchangeable objectives used with the camera and, in position, is centred on the optical axis of the viewfinder. The second set is similar, but the centres of the apertures are offset from the optical axis of the view-finder to allow for parallax at short distances. A dial on the side of the camera is geared to the knob 29 and bears marks showing the focal length of the lens with which the mask in position is to be used, whether it has correction for parallax, and if so, for what distance the correction is made. Circular apertures 26 are provided in the band to register with the eye-piece 19 when an aperture 25 is in register with the aperture 16, but in some cases another aperture 25 fulfils this function.
Patent GB-227469-A (GB)
Title: Profiling machines for metallic beads
IPC: B21D17/04
Filed: 1925-01-12
Abstract: 227,469. Fabrique Juvenia Didisheim- Goldschmidt Fils et Cie. Jan. 12, 1924, [Convention date]. Ornamental metalwork.-A machine for profiling metallic beads comprises a frame 1 carrying a shaft 5, which drives, through gearing 7, 8, a shaft 9 carrying a profiling roller disc 12. The roller runs inside a ring 14 and the periphery of the roller and the inner surface of the ring are grooved at 13, 13<1> respectively, the grooves having recesses with a profile corresponding with that required on the beads. The beads are fed into a gap 21 in the ring from a channel 22 leading from a hopper 23, a star wheel 28 in the hopper moving the beads into the channel. The ring has an outlet 38 and is carried by a slide 15 adjustable by a screw 18. The Specification as open to inspection under Sect. 91 (3) (a) comprises also in place of the ring and roller two peripherally opposed roller discs; or in a modification, three rollers may be used, the beads passing between the opposed peripheries of two pairs of rollers. This subjectmatter does not appear in the Specification as accepted.