baber/WOPTO huggingface dataset:
Patent GB-738733-A (GB)
Title: Improvements in calcium phosphate phosphors
IPC: C09K11/71
Filed: 1951-03-07
Abstract: 738,733. Luminescent materials. SYLVANIA ELECTRIC PRODUCTS, Inc. March 7, 1951 [March 14, 1950], No. 5578/51. Class 39 (1). A luminescent material comprises calcium phosphate activated by manganese and tin, the ratio of the metal atoms to the phosphate (P0 4 ) molecule being between 1.45 and 1.49. The materials are fired in a slightly reducing atmosphere, e.g. by mixing oxygen-free nitrogen with ¢-10 per cent of hydrogen by volume and saturating with water vapour. Carbon monoxide or other reducing gases may be used. Tables are included showing luminescence for amounts of manganese and tin varying between 0.00-0.14 and 0.02-0.08 respectively per two mols. of phosphate. The limiting amounts for manganese and tin are stated' to be 0.2 gram atoms per 2 gram mol. of phosphate. The starting ingredients may be calcium hydrogen phosphate, calcium carbonate manganous carbonate and stannous oxide (or a stannic compound if the reducing atmosphere is strong). Ammonium chloride may be added. A porcelain boat containing the mixture is placed in a silica tube closed at one end by a metal plate with two small openings through one of which the reducing atmosphere is passed prior to the insertion of the tube in the furnace. The fluorescence has a broad blue-green band due to tin and a narrower deep red band due to manganese. Specification 512,154 is referred to.
Patent GB-180056-A (GB)
Title: Improvements in plate heaters
IPC: A47J39/02
Filed: 1921-02-18
Abstract: 180,056. Scott, J. L. Feb, 18, 1921. Plates.-A plate-heater comprises a shallow dish a with a rubber packing-ring c disposed in a groove in the flange b, the heater being adapted to be clipped to the plate g by spring clips f.
Patent GB-144375-A (GB)
Title: Spring frames for motor cycles and the like
IPC: B62K25/20
Filed: 1919-03-08
Abstract: 144,375. Challenge Cycle & Motor Co., and Ramsey, W. March 8, 1919. Spring devices.-Relates to spring frames for mutorcycles, side-cars, &c., of the type in which the roadwheel spindle is carried by links or arms pivoted in the extremities of the frame, and having dependent lugs for connexion with springs arranged below and secured to the bottom stays or members of the frame. The invention consists in a construction of the spring device whereby the springs are arranged in a particular manner and are provided with a casing which is secured to the adjacent hub or arm on the cycle &c. frame by means of a rod passing through a cap screwed on to the end of the casing. The rearwheel axle of a motor-cycle is carried in slots 25 formed in links 7 which have bearings 4 of comparatively large diameter in the frame, the links being formed with arms 14 which are connected to the frame through tension and compression springs 16, 24, 21. The two rear stays 2, 3 are connected to a circular plate 4, Fig. 3, with an internal flange 5, fitting into a corresponding flanged circular member 8, Fig. 2, forming the hub of a bell-crank lever, of which one arm 7 carries the rear-wheel spindle, the other arm 14 being connected to the spring cushioning-device. The outer flange 9 of the member 8 bears on the flange 5 of the plate 4, whilst ball bearings 12 are interposed between an inner flange 10 and the central bolt 11. Tension and compression springs 16, 24 are arranged within a casing 17, which is closed at the rear end by a perforated screw cap 20 through which passes a rod 15<a> screwing into a continuation rod 15 which is secured to the lug 14. The front end of the tension spring 16 is secured to a short rod 18 passing through a bracket 19 fixed to the lower stay 3. The tension of this spring is adjusted by means of nuts on the screw-threaded end of the rod 18. A slight angular movement is allowed for by flaring the opening in the bracket 19 through which the rod passes. The inside compression spring 24, which abuts against a plunger 23 at the end of the rod 15<a>, acts in conjunction with an outside compression spring 21 to cushion the movement of the tension spring 16. To ensure lateral rigidity the wheel may be further supported by an horizontal stirrup or yoke 26, pivoted at 28 to the saddle tube, and connected at the rear end either to the wheel spindle direct, or to the link 7 throgh shackles 27. The arrangement is shown in Fig. 5 as applied to a side-car, the brackets 19 for the spring member being fixed on the longitudinal members 32 of the chassis.
Patent GB-526676-A (GB)
Title: Improvements in and relating to paper or like bag making machines
IPC: B31B50/76
Filed: 1939-02-21
Abstract: 526,676. Making paper and like bags. ROBINSON. F. G., and PAPER SACKS, Ltd. Feb. 21, 1939, No. 5792. [Class 94 (ii)] In the making of multi-ply paper &c. bags, such as those described in Specifications 443,920 and 443,950, the flat tube or bag A is arched at its ends B during the opening operation to cause the inner plies to lie against the outermost ply without the use of adhesive. The opening may be effected by suction devices 3, 4 on the upper side and a third 6 on the lower side. After suction has been applied, 3 and 4 are raised and 6 lowered to open the tube by cams 34, 19 and linkwork 25 ... 33 and 13 ... 18. The opening is completed by a pair of blades 37, 38 inserted into the tube while they are closed and then expanded to the position in Fig. 6 by levers 39, 40 coacting with fixed cams 43, 44, and activated by a cam 51 through lever 47, 49.
Patent GB-634363-A (GB)
Title: Improvements in and relating to electromagnetic contactors
IPC: H01H9/38
Filed: 1945-03-08
Abstract: 634,363. Electromagnetic switches. BRITISH THOMSON-HOUSTON CO., Ltd. March 8, 1945, No. 5799. Convention date, March 10, 1944. [Class 38 (v)] In a contactor rotation of an armature 13 about a pivot 18 first brings a copper arcing contact 11 into engagement with a co-operating copper contact 16 after which a member 10 carrying the contact 11 pivots about the point of engagement of the contacts so that a silver main " contact 12 is brought into engagement with a co-operating " main " contact 17. This latter action serves to compress a biassing spring 23. The member 10 is loosely pivoted to the armature by means of a pin 20, the ends of which engage slots 21 in the two side arms of a bracket 22 fixed to the armature. When the armature 13 is released the reverse action takes place. A blow-out coil 30 may be automatically inserted in circuit when the contacts 12, 17 open so as to blow out the are between the contacts 11, 16.
Patent GB-348247-A (GB)
Title: Improvements relating to the notching and feeding of blanks in the manufacture of can bodies, and the like objects
IPC: B21D51/26
Filed: 1930-02-22
Abstract: 348,247. Feeding sheets. ARMSTRONG, J. J. V., 12, Church Street, Liverpool.-(Continental Can Co., Inc.; 100, East 42nd Street, New York, U.S.A.) Feb. 22, 1930, No. 5928. [Class 100 (i).] Metal blanks in the manufacture of can bodies are delivered one at a time from a magazine by vertically reciprocating suction cups 16, conical plates 13, 14 and a plate 15 projecting beneath the blanks, but permitting the lowest one to be drawn past. The suction cups 16 permit the blank to move slightly to engage gauging surfaces 205, 200, a plate 21 forming a support for the blank. On its downward movement a spring-pressed segmental feed-roll 27 which, together with a lower roll 26, is continuously rotating, engages the blank and after a notching process feeds it forward to the forming rolls 2.
Patent GB-1076454-A (GB)
Title: Improved active filter circuit
Inventor: DANNAHY PATRICK THOMAS HENRY
IPC: H03H11/12
Filed: 1965-02-11
Abstract: 1,076,454. Transistor circuits. RANK BUSH MURPHY Ltd. Feb. 11, 1966 [Feb. 11, 1965], No. 5950/65. Heading H3T. An active high-pass filter comprises first and second capacitors 1, 2 respectively connected in series between an input terminal and the control electrode of an active electronic device, i.e. the base of transistor 3, a direct connection from a common electrode, i.e. the collector, to one terminal of a source of operating current, a load resistor 6, 7 connecting an output electrode, i.e. the emitter, to the other terminal of said source, a resistance network 10, 11 applying a predetermined bias potential to said input electrode, a resistance 8 connecting the output circuit of said active device to the junction of the first and second capacitors and a third capacitor 14 connected to apply signals from the output circuit to a point in said resistance network so as to increase the cutoff slope of the filter. The cut-off slope may be further increased by the use of an output capacitor 12 feeding output resistor 13, of suitable value; the output resistor 13 may comprise the input impedance of a following stage.
Patent GB-176364-A (GB)
Title: Improvements in or relating to cop-winding machines
IPC: B65H54/14
Filed: 1922-02-28
Abstract: 176,364. M³ller, F., [Firm of], (Assignees of Holtappels, J.). March 7, 1921, [Convention date]. Winding-machines.-In a cop-winding machine wherein the spindle is rotated and reciprocated, the traverse cam 12 is mounted upon the spindle and is rotated relatively thereto through gears 5, 8, 10. Specification 11316/10 is referred to.
Patent GB-564915-A (GB)
Title: Improvements in or relating to photographic objectives
IPC: G02B13/00
Filed: 1943-04-14
Abstract: 564,915. Photographic objectives. KODAK, Ltd. April 14, 1943, No. 5988. Convention date, May 11, 1942. Drawings to Specification. [Class 97 (i)] In a photographic objective consisting of five simple air-spaced components, the front two being positive with their front surfaces more strongly curved, the next two being negative with their rear surfaces more strongly curved, and the rear component being positive, the rear air space is between .2 F and .5 F and the refractive index of the front component is greater than 1.7. The air space between the second and third components may have negative power and have an axial length less than that of the air space between the third and fourth components. Limits for the radii of the surfaces, and complete data for two examples are set out.
Patent GB-962378-A (GB)
Title: Trolley
IPC: B62B3/18
Filed: 1963-02-14
Abstract: 962,378. Wheeled carriers. SOC. D'INSTALLATIONS GENERALES ET D'AGENCEMENTS COMMERCIAUX. Feb. 14, 1963 [Feb. 14, 1962], No. 6035/63. Heading B7B. A self-service store carrier comprises a wheeled base 1 carrying side frames 3 joined by a propelling handle 4 and forwardly extending horizontal supports 5 and inclined supports 8 are carried by the side frames to supports baskets. The upper basket has a wire end wall 10 pivoted at its upper edge whilst the lower basket end wall 11 is pivoted at its lower edge so that goods taken from the upper basket for registration are subsequently returned to the lower basket for packing. The bottom basket may be longer than the upper one or slidably mounted on the supports 8.
Patent GB-116249-A (GB)
Title: Improvements in Brush Holders in connection with Grinding or Crushing Rolls.
Inventor: STACEY FRANK
IPC: B02C4/40
Filed: 1918-04-11
Abstract: 116,249. Stacey, F. April 11, 1918. Roller mills. - A cleaning- brush b for flour-milling rolls is mounted at each end in the open jaw of an adjustable member a which is slotted to receive a clamp-screw h and is guided by a channel or cheeks i in a plate d secured to the casing.
Patent GB-1385896-A (GB)
Title: Manually operable control arrangements for controlling electrical  signals such as the outputs of frequency synthesizers
IPC: H03C3/09
Filed: 1971-03-08
Abstract: 1385896 Frequency synthesis RACAL COMMUNICATIONS Ltd 1 March 1972 [8 March 1971] 6259/71 Heading G4H [Also in Division H3] Apparatus for generating a range of frequencies, the output of which may be swept up or down through this range in steps of, e.g. 10 or 100 Hz comprises a plurality of single decade decimal counters 6C-17C connected in cascade and each adapted to supply a BCD word 6B- 17B to an associated control device 6-17 each device being arranged to control the value of one digit in the value of an output frequency produced at 18, 20, e.g. a value of 5 at 6B will cause a 50 Hz signal to be produced at 20, a value of 6 at 12B and zero at all the other inputs 6B-10B, 14B-17B will cause a value of 60 kHz to be produced at 20. Input pulses are supplied by manual rotation of a disc 54 having evenly spaced circumferential marks thereon which are arranged to interrupt a light beam impinging on two photo-cells 60, 62 via a stationary mask containing similar marks slightly skew to the first so that two approximately sinusoidal wave forms of a 90 degree phase difference are produced and fed to a detector 64 where one of these waveforms is used to generate input pulses to the counter on line 66 and where the phase difference is investigated to enable one of two AND gates 72, 74 according to the sense of rotation of the disc 54, so that the pulses reach the counter by either line 26 or 28 according as to whether the frequencies are to be scanned upwards or downwards. In operation counter 6C counts to 9 and resets to zero sending a pulse over line 22 or 24 to the counter 8C and then commences to count to 9 again, and so on. The speed of scan may be modified using AND gates 84, 85 which may be enabled by switch and line 88-92 to disable AND gates 80, 82 and thereby cause the pulses to be fed straight to the second stage 8C of the cascade. The position LOCK shown causes both sets of gates to be disabled and the output frequency to be locked at the presently occurring value. In a modification Fig. 4 (not shown) a detector is employed to detect the rate of rotation of the disc and if this is above a certain level, causes an auxiliary generator to pass additional pulses to the counter. In a second modification, Fig. 1 (not shown), a lever switch is employed, the direction of displacement of which indicates the direction of count and the magnitude of displacement being adapted to control the frequency of an input pulse generator.
Patent GB-988291-A (GB)
Title: Dibenzocycloheptane derivative
Inventor: HARMS AUGUST FRANCISCUS
IPC: A61K31/00
Filed: 1963-02-15
Abstract: The invention comprises 3-(dibenzo [a,d]-1,4-cycloheptadien-5-yloxy) nortropane of formula <FORM:0988291/C2/1> and non-toxic acid addition salts thereof with inorganic and organic acids.  It may be made by reacting nortropine or an alkali metal derivative thereof with a dibenzo [a,d]-1,4-cycloheptadien-5-yl halide.  Alternatively 3-(dibenzo [a,d]-1,4-cycloheptadien-5-yloxy) tropane may be demethylated, e.g. by reacting with a cyanogen halide and hydrolysing and decarboxylating the N-cyano compound formed, e.g. with alcoholic KOH.  In other methods the corresponding N-benzyl compound may be debenzylated, e.g. by hydrogenation, or corresponding N - carboxylic ester or N - carbonamide compounds hydrolysed.  N - Cyano - 3 - (dibenzo [a,d] - 1,4 - cyclo - heptadiene-5-yloxy) nortropane is prepared by the action of cyanogen bromide on 3-(dibenzo [a,d] - 1,4 - cycloheptadien - 5 - yloxy) tropane.  The compounds of the invention have an atropine-like action, decreasing locomotor activity and may be administered orally, e.g. as tablets, pills, capsules, suspensions, emulsions, syrups or elixirs, or parenterally, e.g. as suspensions or emulsions in water or a vegetable oil or in solution in an organic solvent.
Patent GB-434398-A (GB)
Title: Improvements in and relating to cabinet refrigerators
IPC: F25D17/06
Filed: 1935-02-28
Abstract: 434,398. Refrigerators. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Feb. 28, 1935, No. 6383. Convention date, March 1, 1934. [Class 29] A refrigerator cabinet comprises a base 13 having an insulated top 12 on which a unit having a top wall 10 and side walls 11 is removably supported to form a closed compartment, and a refrigerating - machine 18 is located in the base with its evaporator 26 supported on the top 12. A fan 28 forces cold air from around the evaporator up behind a baffle 31 to the top of the cabinet from which it descends over the goods therein. The fan motor 29 also drives a second fan 37 which draws cooling air over the refrigerating-machine 18 and its condenser 20.
Patent GB-456870-A (GB)
Title: Improved pressure regulator for liquids
IPC: G05D16/06
Filed: 1936-03-03
Abstract: 456,870. Pressure regulating valves. LE BOZEC & GAUTIER, 28, Rue Carle Hubert, Courbevoie, Seine, France. March 3, 1936, No. 6472. Convention date, March 4, 1935. [Class 135] In a diaphragm-actuated pressure regulator for liquids of the kind having a closure member formed of two elements 26, 29 in series, one 29 of which is a piston valve, an intermediate chamber 35 between the valve seats 27, 30 of the two valve elements is in direct and permanent communication with an auxiliay chamber 40 forming a shock-absorber. The regulator prevents chattering when the rate of flow is small and also avoids the transmission of hydraulic shocks past the regulator. The outlet 28 of the intermediate chamber 35 leads to the main valve outlet 12 and is controlled by the lift valve element 26. The stem 24 of the closure member is connected to a flexible diaphragm 16 loaded by a spring 18 which can be adjusted by a key applied to a threaded washer 19 on removal of a plug 21. The chamber 35 communicates by passages 36, 37 and an open-ended perforated tube 38 with the auxiliary chamber 40 which is closed by a screw cap 33. The chamber 40 which has a variable volume is formed mainly within the piston 29 the interior of which contains a block 41 of rubber or other resilient material in which a multitude of small gas bubbles are imprisoned to render the block compressible. The piston valve has guide wings 34 and is arranged to close before the valve 26. If the flow of fluid at the point of consumption is suddenly stopped, the pressure below the diaphragm at once causes the piston 29 to close the opening 30 and thereafter the leakage between the opening and the piston causes the pressure to rise gradually in the chamber 35 and slowly apply the valve 26 to its seat. In the meantime a certain amount of liquid has entered the chamber 40 and compressed the block 41. In opening, the sudden drop in pressure in the chamber 35 due to the opening of the valve 26 before the piston valve 29 does not cause any irregular operation since it is accompanied by an expansion of the block 41 and a compensating outflow of liquid from the chamber 40.
Patent GB-554776-A (GB)
Title: Improvements in the manufacture of foodstuffs
IPC: A21C11/00
Filed: 1942-05-14
Abstract: 554,776. Moulding by extrusion. SPOONER, W. W. May 14, 1942, No. 6536. [Class 87 (ii)] In moulding human and animal foodstuffs by extrusion from a cylindrical chamber 1 through a die-plate 3, the chamber is heated by highvelocity air streams which issue from nozzles 7 and impinge on the outer surface of the cylinder. The air streams are taken up by ducts 8, 9 in a closed cycle to the inlet of a fan 11 connected by a duct 12 to the air-pressure chamber 6. Thermostatically-controlled steam or electric heating elements 13 may be disposed in the duct 12, in the fan inlet, or in both.
Patent GB-1401373-A (GB)
Title: Bayonet connectors
IPC: H01R13/646
Filed: 1973-02-09
Abstract: 1401373 Two-part couplings RADIALL 9 Feb 1973 [16 Feb 1972] 6634/73 Heading H2E Semicircular spring washers 16a, Fig. 3, and, identically, 16b, Fig. 1, have arms 17 which exert axial pressure against the flange 10 of a male connector body 1, and by thus retracting the retaining collar 13 they ensure that the ends 15 of its bayonet slots are locked securely against the bayonet pins 11 of the female connector body 2, in a bayonet-fastened connector pair of generally conventional design. Alternative forms of spring washer, Figs. 5, 6, 7, 8 (not shown), have pressure arms differently arranged, and may be of a split one-piece circular contour, for use in assemblies in which flange 10 is detachable. The connector may have coaxial or multi-pole contacts.
Patent GB-322407-A (GB)
Title: A new or improved reflecting device for use in conjunction with motor car or like headlamps
IPC: B60Q1/06
Filed: 1929-03-01
Abstract: 322,407. Dickson, D. B. March 1, 1939. Devices external to lantern for transmitting light to definite points.-A reflector 1 for transmitting rearwardly light directed forwardly by the lamp 6, for engine inspection &c., is attached to the front 5 of the lamp by one or more suction cups 4 and has a portion 3 extending beyond the periphery of the lamp. The reflector may be made of sheet metal stiffened by having its edges turned around a bent wire, and the suction cups are provided with shanks passing through the flange 2 of the reflector and secured by transverse pins. The reflector may reflect light rearwardly on both sides of the lamp and may extend over any desired part of the lamp front, or may cover the whole of the lamp front. Instead of being curved the reflector may be bent sharply as shown in Fig. 8 or may comprise a flat portion 1<b>, Fig. 9. The reflector may be polished or painted white.
Patent GB-1378104-A (GB)
Title: Pure solid honey and process for preparation thereof
IPC: A23L21/25
Filed: 1973-02-12
Abstract: 1378104 Treating honey; sweetener H KANAYAMA.12 Feb 1973 [15 Feb 1972] 6765/73 Headings A2B A2E and A2D Pure solid honey is produced by dehydrating pure honey in a vacuum evaporator at 40- 60‹C for up to one hour, and pressing the dehydrated honey. The concentration of the product is preferably 91-95‹ Brix. Pressing is carried out at 20‹C. The honey may be pressed into cylindrical, rectangular or ellipsoidal tablets, and may be used as a sweetener for beverages and as a health food.
Patent GB-785865-A (GB)
Title: Improvements relating to windscreen wipers
IPC: B60S1/38
Filed: 1956-03-06
Abstract: 785,865. Windscreen cleaners. GENERAL MOTORS CORPORATION. March 6, 1956 [March 23, 1955], No. 7017/56. Class 138(1). A windscreen wiper assembly 10, Fig. 2, particularly for use with " wrap-around " windscreens, has a primary yoke 12 adapted to be attached (by a socket 14) to a wiper arm (not shown), one end 16 of the yoke 12 being pivotally connected at 18 intermediate the ends 38, 40 of a secondary yoke 20, which ends 38, 40 are connected at spaced points at one end of a flexible backing strip 22 for the wiper blade 30, the other end 44 of the primary yoke 12 being directly and movably connected at 46 to the backing strip 22 and pivotally connected at 50 to one end of an arm 48 whose other end is connected at 54 to the other end of the backing strip 22, and a spring 56 connected to the yoke 12 and the arm 48 so as normally to deform the strip 22 and wiper blade 30 into a curved shape. The backing strip 22, Fig. 8, has a longitudinal slot 24 and tapers from the centre towards each end, the slot 24 receiving the reduced neck 36, Fig. 4, between a blade retainer portion 32 and the wiper blade edge 34. The yokes 12, 20 and the arm 48 are of channelled cross-section and pairs of inwardly extending ears 42, 46 and 54 are provided on the yokes 12, 20 and the arm 48, respectively. The outer ears 42 and the ears 54 slidably embrace the edges of the backing strip 22 whilst the inner ears 42 and the ears 46, slidably engage in notches 26, 28, Fig. 8, in the edges of the strip 22, in order to limit such slidable movement. The backing strip in its normal state is curved in the opposite sense to the curvature of the surface to be wiped. The spring 56 mounted between a pin 60 on the primary yoke 12 and a pin 62 on the arm 48, causes the arm to move the strip to assume the curvature shown in Fig. 2. One end of the spring 56 is centred on the pin 62 between two plastic rings, whilst the other end of the spring 56 is connected to the pin 60 through a link 58.