baber/WOPTO huggingface dataset:
Patent GB-189916-A (GB)
Title: Improvements in or relating to amusement appliances
IPC: A63G1/28
Filed: 1921-09-27
Abstract: 189,916. Walker, J. R. Sept. 27, 1921. Roundabouts.-Relates to amusement apparatus of the type in which one or more passenger-carrying devices or cars are connected to a rotatable structure by flexible members adapted to cause secondary movement of the car, and comprises arranging the flexible members in open loops encircling one or more stationary members disposed eccentrically to the rotatable structure, or connecting the flexible members to a closed flexible loop encircling two or more stationary members disposed eccentrically to the structure. A number of cars 7, Fig. 2, adapted to run on a fixed platform 8 are connected by cables 1 to a rotatable disc 2. Each cable passes from a car over a pulley 5, forms a loop encircling two stationary pulleys 4 and is secured at a point 3 on the periphery of the disc 2. As the disc rotates the length of cable taken up in each loop varies, causing the cars alternately to accelerate and retard. The extent of this secondary motion may be varied by adjusting the distance between the pulleys 4, or by changing the point of attachment 3 of the cable, while the periodicity may be increased by increasing the number of pulleys 4. Pulleys 5<a> may be provided to limit the outward radial movement of the cars. The cars may be given a rotary motion by passing the free end of the cable round a central fixed pulley on the car, and attaching' it to the periphery of the disc 2. Each car may be provided with a steering wheel to change its point of attachment to the cable. In a modification, the disc 2 is elevated and the cars are suspended on the cables, the secondary motion being in a vertical direction. In a further modification, the cars are carried on pivoted arms 25, Fig. 9, and the cables pass over pulleys 29, mounted on a circular track 30, and connect the arms with a flexible band 31, Fig. 10, encircling stationary pulleys 4. The standard 27 carrying the pulleys 4 may be raised or lowered by a rack and pinion 32 to allow passengers to enter and alight from the cars.
Patent GB-794364-A (GB)
Title: Improvements in or relating to centreless grinding apparatus
Inventor: MODLER HANS
IPC: B24B5/26
Filed: 1955-09-07
Abstract: 794,364. Grinding barrel-shaped rollers. MODLER, J., [trading as ACCHAFFENBURGER MASCHINENFABRIK J. MODLER]. Sept. 7, 1955, No. 25622/55. Class 60. A centreless grinder for barrel-shaped rollers 6 comprises a grinding disc 1, a control disc 2 on a shaft 3 held between the dead centres of a circular grinding machine, and a work holder 4 on a shaft 7 driven by a worm drive 8. The work holder 4 has radial notches 5 each receiving a work-piece 6 ; the work-pieces are successively fed along a guide 9 to the work holder and after grinding are ejected by a conical collar 12 on the shaft 3. The disc 1 may be replaced by a grinding block having a concave profile and oscillated along an arc whose centre is at the centre of the control disc.
Patent GB-256305-A (GB)
Abstract: 256,305. Svenson, A. W. April 27,1925. Coins, separating and sorting. - Coins are fed from a table 5, Fig. 3, on to a succession of endless bands 1 - - 4, Figs. 1 and 3, which run at successively greater speeds whereby the coins are spaced out and are carried to the upper end of the roll track 7, the said bands being inclined forwardly and laterally and disposed so that coins drop from one band on to the succeeding band. The bands 1 - - 4 run on rollers 10 - -17 and are driven by a crank 19 through pulleys 21, 22 and a belt 25, the inclined shaft 38, Fig. 4, of the roller 11 being driven by a crosspin from the pulley-shaft 26 and itself driving through gearing 33, 34 the shaft 35 of the roller 12, while the rollers 15, 16 are similarly driven from the shaft 26 through the chain 40 and toothed wheels 44, 45. The coins fall from the upper end of the band 4 on to the track 7 and roll down upon the laterally projecting flange 50, Fig. 10, wedge shaped members 51 of successively decreasing heights being provided thereon which divert the coins according to their diameters. Specification 246,074 is referred to.
Patent GB-719559-A (GB)
Title: An improved arrangement for changing the ratio of change-speed gears more particularly for heavy motor vehicles
IPC: F16H61/02
Filed: 1951-11-05
Abstract: 719,559. Controlling change-speed gearing. MASCHINENFABRIK AUGSBURG - NURNBERG AKT.-GES. Nov. 5, 1951 [Nov. 8, 1950], No. 25806/51. Class 80 (2) The gear-selecting member 30 of a change-speed gear 31 is moved step-bystep in one direction or the other by the respective one of two pneumatic actuators 22, 23 operating through ratchets 32, 33 and controlled by a single member 12, Fig. 2. The member 12 may be rocked to the left or to the right about a pivot 14 to open a valve 7 or 8 which allows air from an engine-driven compressor 2 to enter the cylinder of the actuator 22 or 23 and cause an up or down change in the gear ratio. Pawls 34, 35 pivoted on levers 36, 37 are normally held out of engagement with the ratchet wheels 32, 33 by springs 38, 39 but when the respective actuator is energized they engage their wheel to rotate the member 30. Springs 26, 27 return the actuators 22, 23 to their original state after each operation. An additional actuator 45 may be energized, by pivoting the member 12 about an axis 13 to open a valve 9, to return the gear to a neutral position from whatever gear may be selected. A pinion 49 on the member 30 engages a rack 47 attached to a piston 48 for this purpose.
Patent GB-518826-A (GB)
Title: Improvements relating to the manufacture of synthetic stone and the like
IPC: B28B7/34
Filed: 1938-09-03
Abstract: 518,826. Moulding synthetic stone. SPRINGBANK QUARRY CO., Ltd., SYMINGTON, H. K., and PAXTON, J. S. Sept. 3, 1938, No. 25814. [Class 87 (ii)] Synthetic stone is moulded in a sand mould composed of a large body of inert sand having clay or earthy material mixed therewith. The sand mould is first formed roughly, as by trowelling or digging, and then finished against a pattern. After removal of the pattern the cement mixture, conveniently composed of three parts of sharp sand to one part of cement, with water in such proportion as to form a wet slurry, is poured into the mould, preferably against a deflector to prevent disturbance of the sand of the mould, and during the moulding and setting periods the sand is maintained moist. When " green " the block is removed and cleaned as by a wire brush, and then, after further drying and hardening, it is further cleaned or smoothed or polished as with carborundum. Wood, metal or other solid material may be positioned against a wall of the mould so as to give a smooth or straight edge, or the sand may be reinforced with plaster of Paris or other hard-setting material at that point.
Patent GB-455878-A (GB)
Title: Improvements in and relating to the display of variable advertising matter
IPC: G09F11/34
Filed: 1935-09-18
Abstract: 455,878. Changing signs ; coin - freed apparatus. FISHBURN, J. E., 39, St. James's Street, Westminster, and GODFREY, P. F., Tavistock Works, Tavistock Grove, Croydon. Sept. 18, 1935, No. 25824. [Classes 3 (i) and 27] In indicators &c. in which a plurality of independent display panels packed face to face has the front panel moved around the pack and rotated simultaneously about its longitudinal axis so that it reaches the rear of the pack with its faces reversed, the panels X have upper and lower pintles 24, 27 which ride in substantially circular grooves 23 located on the inner faces of two stationary end plate guides 22. A conveying abutment 36, carried by a constantly rotating gear-wheel located on the outer side of the plate 22, engages the pintles 27 and drags the front panel X away from its window position and against the restraining pressure of a detent spring 35. Both pintles 24, 27 follow the groove 23, the panel passing under guide springs 40 and the pintles 27 coming eventually against leaf springs 34. Across the plate 22, and joining opposite sides of the groove 23, is a wide groove 28, and along this the pintles 24 drop when the pintles 27 reach the springs 34. Immediately beyond the springs 34 the groove 23 falls away from the circular, thus allowing the abutment 36 to continue along its path and leave the panel in an inverted position at the rear of the pack. The groove 23 does not reach the circular line again till just beyond the spring 35, so that the abutment 36 contacts only with the pintles which are at the bottom of the front panel. To assist the action a spindle 30 carries at its inner end an arm 29 and at its outer end a lever 31 which is engaged by a cam 32, rotating with the abutment gear-wheel. A spring 33 swings the arm 29 to close the groove 23 just above the entrance 38 to the groove 28 at the moment before the pintle 24 reaches that point, and the cam 32 then returns the arm 29 to force the panel tightly against the back of the pack. All these parts are duplicated on the opposite plate guide 22. A lamp 41 illuminates the front panel. The device may be driven from the road wheels or the lighting batteries of a vehicle, or may be coin-operated. In a modification, the abutments 36 may turn a given set of pintles 24, 27 through a complete circle and so always display the same faces of the panels at the window.
Patent GB-430130-A (GB)
Title: A process for the production of difficultly dissociable acyl derivatives of salicylic acid and its esters
IPC: C07C69/90
Filed: 1934-09-10
Abstract: The diethylacetic and bromdiethylacetic esters of salicylic acid and its esters are prepared by reacting salicylic acid, its sodium salt or its esters with the halide or anhydride of diethylacetic or bromdiethylacetic acid.  The products, which are dissociable only with difficulty, are useful therapeutically; they may be converted into their salts with inorganic and organic bases.  Examples are given of the interaction of salicylic acid and its methyl or amyl ester with diethylacetyl chloride and bromdiethylacetyl chloride. The preparation of the sodium, calcium and quinine salts of diethylacetyl-salicylic acid is described.
Patent GB-372666-A (GB)
Title: An improved machine set or group comprising a prime mover and an electric generator
IPC: F02B63/04
Filed: 1931-09-16
Abstract: 372,666. Driving centrifugal pumps. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Sept. 16, 1931, No. 25991. Convention date, Oct. 3, 1930. Addition to 355,009. [Class 110 (i).] According to the Specification as open to inspection under Sect. 91 (3) (a), a centrifugal pump, blower, or the like is driven by a pair of radial fixed-cylinder internalcombustion engines 2, 3, mounted on flanges 4, 5 on the pump &c. casing. The set may be mounted on rollers for rotation about its axis to facilitate repair of an engine. This subject-matter does not appear in the Specification as accepted.
Patent GB-1507506-A (GB)
Title: Device for regulating the density of a roll wound from cloth emerging from a weaving loom
IPC: D03D49/20
Filed: 1975-06-18
Abstract: 1507506 Winding webs SOC F CALEMARD ET CIE 18 June 1975 [18 June 1974 13 May 1975] 25998/75 Heading B8R In order to maintain constant tension during winding on a shaft, the shaft is driven by oneway clutches operatively connected to resiliently yieldable linkage driven by reciprocable connecting rods. In a first embodiment, Fig. 1, a winding shaft 1 is driven by a shaft 6 via speed reduction gearing 4, 5, 5<SP>1</SP>. One or more one-way clutched wheels 7 are mounted on the shaft 6 and are oscillated by arms 8 fixed thereto at their one ends and mounted slidably against the action of compression springs 12 on connecting rods 9 by swivels 8<SP>1</SP>. The connecting rods 9 are attached to a constantly rotating crankshaft 10. The lengths of the arms 8 are adjusted so that, at the beginning of winding, the speed of a point on the periphery of the roll forming on shaft 1 is substantially equal to the issuing speed of the web T. As winding proceeds, the roll diameter increases and thus the speed of rotation of the shaft 1 must be decreased if the speed of a point on the roll periphery is to be matched with the issuing speed. Contraction of the springs 12 during the down stroke of the connecting rods due to increase in web tension as winding proceeds, effects this speed reduction automatically. In a second embodiment, Fig. 9, one-way clutched wheels 20 are attached directly to a winding shaft 17 and oscillated by arms 21 pivotably mounted on housings 23 which can be slid relative to their associated connecting rods 24 against the action of springs 28. The spring compression is, however, constant whatever the roll diameter, speed reduction in this embodiment being automatically effected, by movement of the point of application of the arms 21 on the wheels 20 as the roll diameter increases and causes the winding shaft 17 to ascend.
Patent GB-949281-A (GB)
Title: Improvements in and relating to electric switching systems
Inventor: SCHUENEMANN CLAUS
IPC: B60L15/22
Filed: 1962-07-06
Abstract: 949,281. Control of motors. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. July 6, 1962, No. 26053/62. Heading H2J. A control system, e.g. for inserting resistors in series with a traction motor, comprises a master controller 5 having microswitches b1 ... b4 by which signals are given to " OR " gates 31 ... 34 and thence to " AND " gates 7 ... 19 to switch bi-stable circuits 21 ... 24 controlling contactors 41 ... 43 in squence at a speed which is independent of the speed of movement of the master controller. The " AND gates act as interlocks which ensure that a further step up or down cannot be initiated unless the instruction from the appropriate " OR " gate is present, and that the previous bi-stable circuit and its associated contactors are in the correct condition. In Fig. 1 (not shown), the contactors 41 ... 43 control motor resistors in four steps. It is stated that notching on may be influenced by conditions such as motor current and that the gates and bi-stable circuits may be static switching elements.
Patent GB-773899-A (GB)
Title: Improvements in or relating to compression-ignition engines
Inventor: SHOOBERT GEORGE WILLIAM
IPC: F02N19/08
Filed: 1954-09-08
Abstract: 773,899. Starting fuel-injection engines; ignition systems. K.L.G. SPARKING PLUGS, Ltd. Dec. 8, 1955 [Sept. 8, 1954], No. 26060/ 54. Classes 7 (3) and 7 (4). To assist starting a compression-ignition engine, the charge is heated by means of a surface discharge sparking plug 12 mounted in the combustion chamber 10 a series of electrical impulses unsynchronized with the engine being applied to the plug so as to produce a substantially continuous discharge. As shown, the electrodes 13, 14 are in circuit with the secondary winding 17 of an induction coil 18 energized from a battery 19 through a vibrator 20. Switches 21, 22 are provided whereby the discharge may be discontinued when the engine has been started.
Patent GB-905938-A (GB)
Title: Improvements in or relating to electric pulse generating circuits employing transistors
IPC: H03K3/282
Filed: 1959-07-29
Abstract: 905,938. Transistor pulse circuits. GENERAL ELECTRIC CO. Ltd., and BOWDEN, C. July 18, 1960 [July 29, 1959], No. 26105/59. Class 40 (6). A pulse generator comprises two transistors 1, 2 reciprocally coupled to form a free-running multivibrator. The collector circuits are coupled by means of a centre-tapped transformer 13 to an emitter follower 19. The output waveform at terminal 23 exhibits sharp leading and trailing edges because the emitter follower 19 utilizes the rapid transition from off to on state of transistors 1, 2 in preference to the slower reverse transition. The negative peaks of the waveform at various points are limited by the reverse breakdown of Zener diodes 11, 12, 25. The circuit is suitable for driving a diode bridge chopper.
Patent GB-671076-A (GB)
Title: Improvements in speed governors and their application to helicopters
Inventor: MORAIN PAUL
IPC: G05D13/00
Filed: 1949-10-11
Abstract: 671,076. Differential speed-governors. SOC. NATIONALE DE CONSTRUCTIONS AERONAUTIQUES DU SUD-OUEST. Oct. 11, 1949 [Oct. 14, 1948], No. 26130/49. Class 57 [Also in Groups XXIV and XXXIII] In a differential speed-governor comprising a sun gear 2 connected to a constant reference speed source 46, a sun gear 1 connected through a shaft 37 with the device whose speed is to be controlled and a planet case 4 connected to the speed control member of the engine driving the device, the connection between the planet case and the control member comprises two gear trains 40, 41 having different ratios which are alternately brought into action by clutches 18, 19 when either the velocity'or acceleration of the planet case changes sign, the lower gear ratio, constituting the higher governor power, being coupled when the velocity and acceleration are of the same sign. This arrangement causes damping of the oscillations of the controlled speed. The reference speed may be attained from the controlled speed source through gears 127, 38, 128, 21 and a constant speed centrifugal clutch 46 (see Group XXIV) which has provision to compensate for changes in its output torque. Acceleration and speed direction detectors 47 comprise independent discs driven from a common shaft 7 and carrying electrical contacts operable to energize the electromagnetic clutches 18, 19. A clutch 43, (not shown), operable by a lever 45 disconnects the governor when the speed is to be adjusted manually by a lever 44 and simultaneously the speed setting of the constant speed clutch may be adjusted by a gear 36 through a clutch which is also operated by lever 45. The latter clutch may also be operated independently by a solenoid 85 whilst clutch 43 may be operated by a solenoid 84. The governor may transmit to the engine through a servomotor, and may be used for synchronising a number of engines one of which may provide the reference speed. The governor may also be used for controlling the blade pitch of a helicopter rotor (see Group XXXIII).
Patent GB-1041844-A (GB)
Title: Improvements in constructional members
Inventor: HEARN FREDERICK WILLIAM
IPC: E04C3/29
Filed: 1963-07-02
Abstract: 1,041,844. Laminates. AMALGAMATED ROADSTONE CORPORATION Ltd. July 3, 1964 [July 2, 1963], No. 26191/63. Heading B5N. A constructional member comprises first and second opposed surfaces formed by two or more spaced sheets of glass fibre cloth impregnated with a thermosetting or catalytically hardening resin, the space between the sheets being filled by adjacent and alternating strips and webs, the strips being of foamed impermeable synthetic plastics material having a plurality of closed cells and being partially impregnated with the said resin and the webs being of glass fibre cloth either integral with or connected to the glass fibre cloth forming the said surfaces, the said webs being connected to the said resin and thereby bonded to the adjacent strips. Polyvinyl chloride is the specified cellular material and the specified impregnant is a polyester. Cork tiles or vinyl tiles or sheets may be bonded to one of the outer surfaces.
Patent GB-181398-A (GB)
Title: Improvements in wood working machines
IPC: B23Q35/10
Filed: 1921-06-13
Abstract: 181,398. Costain, R. A., and Cummins, W. June 13, 1921. Slotting.-Grooves such as the V grooves in stair-case stringers are cut by a rotating tool 27 carrying on the same spindle a follower 26 which works in a templet 10 clamped above the board 9. The spindle is driven by a pulley 14 through a countershaft 19 forming the pivot of a jointed arm swinging on the main spindle 12, which is adjustable up and down by means of a hand-wheel 17. The templets are duplicated for right and left hand cutting.
Patent GB-779269-A (GB)
Title: Improvements in or relating to burglar alarms
IPC: H04M11/04
Filed: 1954-09-10
Abstract: 779,269. Automatic exchange systems, LANDER, A. Nov. 3, 1955 [Sept. 10, 1954], No. 26249/54. Class 40 (4). In a substation arrangement for establishing a connection over the automatic telephone network in response to the operation of a burglar detector and for sending a recorded message over the connection, the disc which produces the impulse trains to establish the connection is separate from the gramophone record carrying the recorded message, and is mounted on a shaft which is non-coaxial with that carrying the gramophone record. The impulsing disc 9 has a continuous groove tracked from the centre to the periphery by a tracking needle carried by a contactor head. After this head has tracked the first few convolutions 10 (to allow time for the reversion of dial tone from the exchange) a contactor mounted on the head engages the ramp members 12, consisting of wire loops mounted in holes 12A adjacent the groove, which are grouped so as to operate the contactor to produce the required impulse trains (e.g. " 999 "). The contactor then tracks off the edge of the disc to come to rest on a rest member. During this time the pick-up traverses a plain portion of the gramophone record, and thereafter reaches the portion of the record containing the recorded message.
Patent GB-769220-A (GB)
Title: Polyglycol terephthalates
IPC: C08G63/85
Filed: 1954-09-10
Abstract: In the manufacture of filament-forming phthalate polyglycol terephthalates by heating a glycol ester of terephthalic acid in presence of a metal-containing polymerization catalyst, colour formation is inhibited by effecting polymerization in presence of a phosphoric acid, an alkyl phosphate, a hydroxyalkyl phosphate or an aryl phosphate.  The glycol ester is preferably made by heating a dialkyl terephthalate with the glycol in presence of an ester-interchange catalyst.  Specified glycols are those of formula OH(CH2)nOH where n=2-10 and polyethylene glycols of molecular weight 106-6000.  Part of the terephthalic acid may be replaced by isophthalic, hexahydroterephthalic, tribenzoic, adipic, azelaic, naphthalic or 2.5-dimethylterephthalic acids or by bis-p-carboxyphenoxyethane.  In examples, dimethyl terephthalate and ethylene glycol were heated in presence of a catalyst and after no more methanol was evolved the glycol terephthalate was added to a polymerization vessel, the phosphorus compound added and the whole heated under reduced pressure, the catalyst combination being (1) zinc acetate, tetraisopropyl titanate and tri-(2-hydroxyethyl) phosphate.  (2) Magnesium acetate, antimony trioxid and trihexyl phosphate.  (3) Zinc acetate, lithium hydride, antimony trioxide and trihexyl phosphate.  (4) Lithium hydride, lead monoxide and triphenyl phosphate.  (5) Magnesium formate, lead monoxide, antimony trioxide and tributyl phosphate.  (6) Lanthanum acetate, antimony trioxide and phosphoric acid or triethyl phosphate.  (7) Manganous acetate, antimony trioxide and tricresyl phosphate or phosphoric acid.  (8) Calcium acetate monohydrate and phosphoric acid.  (9) Manganous acetate, antimony trioxide and tricresyl phosphate. (10) Zinc acetate dihydrate, tetraisopropyl titanate and tri-(2-hydroxyethyl phosphate).  Phosphoric compounds referred to in addition to those exemplified are tri-isopropyl-, triamyl- and tributyl-phosphates; also diphenyl ethyl phosphate, diphenyl phosphate, dibutyl phenyl phosphate, tri-(3-hydroxypropyl) phosphate, dibutyl hydrogen phosphate and phenyl dihydrogen phosphate.  Specification 578,079, [Group IV], is referred to.