baber/WOPTO huggingface dataset:
Patent GB-694768-A (GB)
Title: Road materials making machine
IPC: E01C19/10
Filed: 1951-12-24
Abstract: 694,768. Tar macadam making. BAUMGARDNER. V. F. Dec. 24, 1951 [Aug. 30, 1951], No. 30117/51. Class 107 A tar macadam making machine, especially useful for making the product in small quantities, comprises material supply means, an adjacent liquid storage tank, a mixing unit extending through the tank and surrounded by the liquid, but sealed therefrom, and storage means adjacent to the mixing unit for the finished product. The equipment is mounted on a common frame. The frame 1 carries a material hopper 8, the exit of which is controlled by a movable flap 14 and a driven feed roller 16, and which feeds into the mixing unit 10 where it is sprayed by the liquid binder supplied by pump 50 from the liquid storage tank 9. The mixer unit extends through the tank 9 to an outlet 35 and a storage space 12. The platform 42 is accessible by shovels which are used to remove the material as required. The heater 11 extending within the liquid tank is an oilfired U-shaped tube. The amount of liquid sprayed on the material is governed by a valve, the excess being returned via a pipe 65 to the end of the tank remote from the draw-off 51, and may be provided with an external connection to supply the liquid direct to the road.
Patent GB-313391-A (GB)
Title: Improvements in or relating to boot or shoe construction
IPC: A43B23/22
Filed: 1928-10-18
Abstract: 313,391. Schwartz, H. H. Oct. 18, 1928. Heels; inside heel cushions; stiffeners. - In a shoe having outer and inner whole soles 8, 1, a rubber shank-piece 3 is secured between the soles in a stretched condition. The shank piece is secured by its ends to the inner sole, which has been doubled over for the purpose, as shown in Fig. 2, and the inner sole is then straightened, stretching the shank piece. Integral with the latter is a cushioning plug 4 which projects through an aperture in the outer sole and engages in a recess 12 formed in the heel 11. The latter is provided with a rubber quarter-tip 13.
Patent GB-411748-A (GB)
Title: Device for automatic adjustment of lens diaphragms in cinematograph cameras according to the intensity of the light
IPC: G03B7/085
Filed: 1933-10-31
Abstract: 411,748. Light-current relays. MIHALY, D. VON, 3, Hildegard Strasse, Wilmersdorf, Berlin. Oct. 31, 1933, No. 30205. Convention date, Nov. 2, 1932. [Class 38 (v).] The lens diaphragm of a kinematograph camera is varied in accordance with the lighting of the scene by means of a photo-electric cell continuously exposed to the same brightness as the film and operating, through a relay, an electromagnetic device controlling the diaphragm. As shown, the diaphragm 3 is regulated by a lever 4 having a forked end embracing a pin on a nut 6 on a screwed spindle 7. A flexible shaft 8 connects the spindle 7 to a spindle 19 rotatable in opposite directions, through worm gearing 10, 11, by motors 12, 13. The spindle 19 is threaded and carries a nut 18 provided with contacts 16, 17, each in circuit with one of the motors. The photo-electric cell 26 is exposed to light through a regulable diaphragm 23 and is in circuit with an amplifier 28 the output circuit of which includes an electromagnetic relay 21 having a contact pointer 20 in the motor circuits. Variation in the light falling on the cell 26 operates the relay to bring the pointer 20 into engagement with one of the contacts 16, 17, and complete the circuit of the motor moving the diaphragm lever in the appropriate direction. Means are described whereby the diaphragm 23 may be regulated simultaneously with the diaphragm 3 outside adjustable limits of size of the diaphragm 3. The motors 12, 13 may be replaced by one reversible motor, or by electromagnets having armatures acting directly on the lever 4 ; relays 14, 15 may also be inserted between the instrument 21 and the motors.
Patent GB-708234-A (GB)
Title: Improvements in or relating to ultrasonic inspection of objects
IPC: G01N29/265
Filed: 1952-12-01
Abstract: 708,234. Ultrasonic couplings. SPERRY PRODUCTS, Inc. Dec. 1, 1952 [March 14, 1952], No. 30363/52. Class 40 (4) [Also in Group XXXVIII] A device for ultrasonic inspection of an object 11 comprises a search unit wherein a piezo-electric crystal 12 is coupled to the object 11 by a rectilinear support formed of a pair of members 15, 15<SP>1</SP> having different acoustic velocities and a meeting surface 30 which forms a curve to offer a variable angle of incidence ° to the vibrations transmitted from crystal 12, whereby rectilinear movement of the crystal transmits ultrasonic vibrations into the object 11 at a varying angle oc. The crystal 12 may be moved along the surface 16 by means of a slide 40 in screw engagement with a threaded rod 41 which may be rotated by a knob 43. An ultrasonic pulse generator 20 feeds crystal 12, and a synchronized sweep circuit 22 provides horizontal deflection on an oscilloscope 25. The crystal 12 is also coupled via amplifier 26 to the vertical plates of the oscilloscope and thus produces deflections 27, 28 and 29 which represent the transmitted pulse, reflection from a rear surface of the object and reflection from an intermediate fissure respectively. The curve 30 may be a quadrant of a circle (as shown) or any curve specifically designed to yield predetermined angles of transmission. If the acoustic velocity in part 15<SP>1</SP> is less than that in the object 11 a second refraction of the beam will occur on entering the object as in Fig. 2 (not shown), and a wider field of scanning is obtained. In a modification, Fig. 3 (not shown), the curved surface is made concave to the transmitted pulses. Specification 663,064 . is referred to.
Patent GB-782328-A (GB)
Title: Improvements in or relating to devices for damping the rolling movement of ships
IPC: B63B39/06
Filed: 1955-10-24
Abstract: 782,328. Stabilizing ships. DEUTSCHE WERFT AKT.-GES. Oct. 24, 1955 [Aug. 1, 1955], No. 30388/55. Class 113. In a device for damping the rolling of ships comprising stabilizers which may be swung out of a chamber in the hull into the operating position, a shaft 1 rigidly connected at its inner end to a swivelling support 2 is furnished with bearings 3, 4 about which the stabilizers 5 are angularly movable. Angular movement of the stabilizers about the shaft may be effected, for example, by an hydraulic piston rod and cylinder 11, 9 via levers 12, 17, and a safety valve 26 may be opened to permit return of the stabilizer to zero setting when necessary. The swivelling support 2 is rotated by levers 22, 20 from an hydraulic cylinder 19 having a safety valve 24 which may be operated when the leading edge of the stabilizer is subjected to a blow. The space 6 between the bearings receives lubricant from an elevated container or oil pressure pump through passages 7 and 8.
Patent GB-520397-A (GB)
Title: Machine gun and camera actuating mechanism
IPC: F41A19/55
Filed: 1938-10-20
Abstract: 520,397. Remote control of machine guns and cameras on aircraft. KINDELBERGER, J. H. Oct. 20, 1938, No. 30397. [Classes 92 (ii) and 119] A machine gun and camera actuating - mechanism, particularly for use on aircraft, comprises power means for actuating the machine gun, power means for actuating the camera, and a single control for selectively operating the machine gun and camera. The machine gun 1, Fig. 1, may be actuated by compressed air supplied from an air bottle 2, compressed air being used also to close a switch 9 in an. electric circuit which includes the driving mechanism for the camera 6. A shut-off valve 4 is located in the air supply pipe 3 and a multi-way valve 12 is located in the cockpit or gunner's position for the remote control of the machine gun and camera. The plug-valve 12 is seated in a casing 11 under the pressure of a spring 16, Fig. 5, and thrust member 15 and is rotated by a hand-lever 13 into any one of four positions corresponding respectively to (1) the actuation of machine gun or camera, (2) actuation of machine gun alone, (3) actuation of camera alone, and (4) actuation of both machine gun and camera. These positions are indicated on a dial 10 by a pointer on the handle 13. The valve has two passages 33, 34 one of which communicates with a longitudinal passage 35 opening into the pipe 3<SP>1</SP> leading to the machine gun. The switch 9 for the camera circuit is closed by a contact 30 on a plunger 36 actuated when desired against spring pressure 37, by air pressure admitted to the space 28 by the valve 12. A vent 31 is provided in the valve casing to relieve pressure in the pipe 3<SP>1</SP> and from under the plunger 36 when the machine gun or camera are inoperative; such position of the valve being  shown in Fig. 1.
Patent GB-536621-A (GB)
Title: Manufacture of saturated or unsaturated 17-oxy-20-keto-pregnanones or homologues or derivatives thereof
IPC: C07J5/00
Filed: 1939-11-20
Abstract: 536,621. Pregnone derivatives. SOC. OF CHEMICAL INDUSTRY IN BASLE. Nov. 20, 1939, Nos. 30404 and 30405. Convention dates, Nov. 19, 1938, and Oct. 24, 1939. [Class 2 (iii)] 17-Oxy-20-keto-pregnanones are produced from the corresponding 17-oxy-pregnanolene or 17-oxy-pregnandiol by treatment with an Oxidizing agent. It is preferred that the 17-oxy group and nuclear double linkings, if these are present, should be protected intermediately during the oxidation by conversion into an ester or an ether group or by the action of halogen respectively. As oxidizing agents there may be used any agents known for the purpose of converting a hydroxy group into a keto group. Agents mentioned include chromic acid in glacial acetic acid, metals and metal oxides. such as copper powder and cupric oxide. Biochemical oxidation and the interchange of oxidation stages with carbonyl compounds in the presence of catalysts such as metal alcoholates and metal acylates. In examples, (1) A <SP>5</SP>-pregnene-3:17 -diol-20-one-17 -monoacetate is treated with aluminium tertiary butylate in a mixture of acetone and benzene. The resulting 17-oxy-progesterone acetate is purified by chromatographic separation and saponified by alcoholic potassium hydroxide, to give 17-oxyprogesterone which may also be obtained starting with free A <SP>5</SP>-pregnene-3:17-diol-20-one. In a similar manner #<SP>4</SP>-21-methyl-17-oxypregnene-3:20-dione may be obtained. Another compound mentioned as starting material is # <SP>5</SP> - 3 trans-acetoxy -17 - benzoxy - pregnene - 20 - one. (2) #<SP>4</SP>-pregnene-17:20-diol-3-one-17-acetate is oxidized with chromic acid in glacial acetic acid solution for 24À hours at room temperature to give 17-oxy-progesterone acetate (3) # <SP>5</SP>-pregnene-3:17:20-triol is heated with aluminium isopropylate in a mixture of toluene and cyclohexanone to give 17-oxy-progesterone. By starting from 21-methyl-pregnone-3:17:20- triol there is obtained 21-methyl-pregnane-17- ol:3:20-dione.
Patent GB-617660-A (GB)
Title: Improvements in and relating to electric coil windings, particularly for high-voltage current transformers
IPC: H01F38/30
Filed: 1946-10-11
Abstract: 617,660. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 11, 1946, No. 30422. Convention date, Oct. 12, 1945. [Class 38 (ii)] In order that the start and finish leads of the primary winding of a high-voltage current transformer may be substantially in the same circumferential and radial planes so that the coil and leads may be brought within an electrostatic shield to grade the voltage stress across the coil insulation, each flat strand, such as 16, of the conductor is in turn transposed axially in one direction by the width of a conductor then radially, again laterally in the reverse direction and again in a radial direction. Sharp bends are avoided to eliminate points of high voltage stress. Two-turn and duplicate three-turn coils are described.
Patent GB-420718-A (GB)
Title: Improvements in gas-heated wash boilers
IPC: D06F1/00
Filed: 1933-11-02
Abstract: 420,718. Washing-boilers. SLACK, M. H., Grange Works, Accrington. Nov. 2, 1933, No. 30433. [Class 64 (i)] A washing-boiler has support. ting feet B each constructed tc receive the lower beaded edge a of the boiler wall in a recess ( formed between a central lug b<1> extending upwards a short distance on one side of the wall, and single extension b of triangular or cruciform shape engaging the other side and secured by a single bolt D. The extension b may carry projecting studs b<3> entering holes or notches in the wall.
Patent GB-844793-A (GB)
Title: Photographic masking frame
IPC: G03B27/58
Filed: 1957-09-30
Abstract: 844,793. Photographic masking frames. AGFA A. G. Sept. 30, 1957 [Sept. 29, 1956], No. 30561/57. Class 98(1) In a photographic masking frame, a pivoted frame member carries two right angle masks, of which one is fixed thereto and co-operates with paper stops fixed to the base of the frame and the other is yieldably mounted on the frame member and carries its own paper stops which by resilient pressure on the edges of the paper give margins of constant width. As shown, one arm of a right-angle masking strip 6 is connected to frame member 4 by a pin and slot connection 8. Depending flanges 10 carry hinges 11 and springs 14. When the frame is closed, hinge leaves 12 engage projections 13 and, by the compression of springs 14, press mask 6 against the edge of paper 1. The paper is thus pushed against fixed abutments 3. Restoring springs (Fig. 2, not shown) acting in opposition to springs 14 are provided. A leaf spring 17 is engaged by link 16 on closure of member 4 and, when the latter is opened, is drawn back and released to flick paper 1 off plate 2. On closing the frame member, the link 16 is held above the spring 17 until it is in a position to drop over the spring.
Patent GB-1001122-A (GB)
Title: Improvements in or relating to board games
IPC: A63F3/00
Filed: 1962-08-10
Abstract: Apparatus for playing a board game of skill comprises a board marked with an array of spaces and divided into two separate zones which are separable from each other, together with a set of playing pieces corresponding to each zone.  Preferably the board and playing pieces are suitably inscribed for playing a game simulating warfare, the separate parts of the board enabling each player to initially arrange his pieces on the appropriate zone out of view of the opposing players.  The board is reassembled before play commences.
Patent GB-397334-A (GB)
Title: Improvements in or relating to stropping, honing and like appliances
IPC: B24D15/08
Filed: 1932-11-01
Abstract: 397,334. Sharpening razors. DARWINS, Ltd. and BROWN, W., Fitzwilliam Works, Templeborough, Sheffield. Nov. 1, 1932, No. 30726. [Class 60.] Apparatus for stropping and honing razor blades consists of a box having two sides 11 and an end 12, joined by a base 13 which may form a hone or strop. The sides 11 carry guides 14 of channel section, within the edges of which are slidably mounted parts 17 of the ends 16 of a blade-holder carriage, the ends 16 being connected by a base 18 and having journalled therein a spindle 19 carrying at each end a pinion 20 located within the guides 14. Longitudinally movable within the guides are slides 21 each provided at one end with a rack extension 22 gearing with one of the pinions 20 ; the slides are connected by a crosspiece 34 serving to close one end of the box and as a handle, and additional handle members 35 may be provided on the piece 34. The box also carries a removable plate 25 having secured on one face a strop 23, and on the other face a hone 24. The blade holder comprises a spring sleeve 27 secured by a rivet 29 to a member 30, which is flexibly connected to the spindle by the rivet ; a spring 32 may be provided riveted to the spindle and engaging under the head 31 of the rivet. In operation, the slides 21 are reciprocated in the guides, the first movement causing the racks to swing a blade 33, held by the holder, with its edge in contact with the sharpening surface, subsequent movement moving the blade along the surface and applying pressure through the racks and pinions. In order to provide the requisite pressure of the blade on the strop, friction devices, which may be adjustable, may be provided between the ends 16, or the spindle 19, or the pinions 20 and the guides, or between the carriage and the strop or hone. A cover may be provided for the box, provided with means for holding a razor, and with end catches, engaging respectively the end 12 and a spring plunger 41 on the crosspiece 34. In a modification, the member 30 may loosely embrace the spindle 19, collars, recesses, or a screw &c. preventing sliding movement. According to the Provisional Specification a strop is provided on one side of the carriage, and a hone on the other side, the one not in use being detached or rendered inoperative.
Patent GB-1392962-A (GB)
Title: Toluates and their oxidation
IPC: C07C69/76
Filed: 1972-06-30
Abstract: 1392962 Toluates and their oxidation HALCON INTERNATIONAL Inc 30 June 1972 [1 July 1971] 30796/72 Heading C2C The invention comprises #-acyloxyethyl-ptoluate in which the 'Acyl' group represents formyl, acetyl or propionyl. These compounds may be prepared either by esterifying toluic acid with ethylene glycol and esterifying the resultant compound with the appropriate aliphatic acid; or by the acidolysis of p-toluic acid with an appropriate ethylene glycol diacylate. The invention also relates to a method for the preparation of a precursor for polyethylene terephthate containing mono- or bis-(#-acyloxyethyl) terephthalate and terephthalic acid comprising oxidizing the compounds according to the invention in the liquid phase with molecular oxygen.
Patent GB-1178499-A (GB)
Title: Quadrature Rejection Method and Means for a Servomechanism including a Two Phase Servomotor
IPC: G05D3/14
Filed: 1968-06-28
Abstract: 1,178,499. Control of A.C. motors. BENDIX CORP. 28 June, 1968 [6 July, 1967], No. 30884/68. Heading H2J. [Also in Division G1] In a system in which the speed and direction of a motor 74 are controlled by the magnitude and phase relationship of signals in a control winding 89, relative to a reference winding 93, undesired voltage in quadrature with the desired voltage in winding 89 is detected and fed back so as to cancel said undesired voltage. The control winding 89 is connected across a transistor 105 whose base is connected to the source 28 of reference voltage. The phase relationship is such that pulsating D.C. proportional to the undesired voltage appears on line 131. Harmonics are removed by a filter 135 and the voltage unbalances a bridge comprising field effect transistors 181, 183 and resistors 163, 165, supplied from the reference source 28, and whose output is connected across the primary of a transformer 211 whose secondary is in series with the control signal on line 75, before it is amplified at 81. As shown, the motor is part of a positional servo system, the control signal being derived from the difference in angular position between a control synchro 12 having a winding 14 rotatable by a control shaft 16 and a followup synchro having a winding 44 rotated by the motor. A "lug filter" 36 introduces a 90-degree phase shift and removes harmonics. In Fig. 2 (not shown), the motor is in a velocity servo system, the control signal being produced by the difference in speed between control and followup synchros. In both these servo systems the undesired voltage is caused by phase disparity between the control and follow-up synchro voltages and may cause over-heating of the motor and decrease the sensitivity of the system.
Patent GB-816711-A (GB)
Title: A relay chain for receiving and counting out trains of electric impulses
IPC: H04Q3/42
Filed: 1955-10-28
Abstract: 816,711. Automatic exchange systems. TESLA, NARODNI PODNIK..Oct. 28, 1955 [Nov. 9,1954], No. 30889/55. Class 40 (4). A (ligit represented by a train of impulses is counted into a relay chain which is then set to register the complement of the digit. A further train of impulses is counted into the chain which is driven to saturation at which time this further train is cut off, whereby the further train contains a number of impulses equal to the first train. In the embodiment relays A, D, E have energizing windings A1., D1, E1 and restoring windings A2, D2, E2. A energizes at the beginning of each odd impulse and restores at the beginning of each even impulse. B energizes at the end of each odd impulse and restores at the end of each even impulse, but holds from the end of the 7th to the end of the 10th impulse. C is energized from the beginning of the 2nd to the beginning of the 5th and from the end of the 8th to the beginning of the 11th impulse. D is up from the end of the 3rd to the end of the 9th impulse. E pulls up at the end of the 6th impulse and stays up till the chain reaches saturation at the end of the 12th impulse. When a first train of impulses has been received an auxiliary circuit energizes X (not shown) followed shortly after by Y (not shown). If the digit registered is more than 6, M operates to restore E and otherwise change the registration to the complement. If the digit registered is less than 6, M does not operate and E energizes. If the digit is 6, the chain is unaffected. When the chain is saturated a signal is sent over circuit a5, c5, d4, e4 to stop further impulses.
Patent GB-617693-A (GB)
Title: Improvements in and relating to apparatus for arranging and packing bobbins and the like
IPC: B65H67/06
Filed: 1946-10-17
Abstract: 617,693. Packing-machines. ASHTON BROS. & CO., Ltd., and BAYES, A. W. Oct. 17, 1946, No. 30907. [Class 94 (i)] [Also in Group XXX] In an apparatus for packing batches of bobbins into boxes the bobbins 32 are placed in a hopper 10, having a floor formed of reciprocating bars 11 the upper surfaces of which are serrated so that the bobbins are urged forward through a slot 10b in the front end wall of the hopper and fall on an inclined vibrating troughed or apertured chute 31 into which the bobbins are guided by staggered deflectors. On leaving the chute the bobbins are carried forward by their heads on belts 37 of circular crosssection and are discharged into loading chutes 44 where they are held ready for loading into boxes. Each box is pushed forward along a table 73 abutting against a cross-bar 54 to cause a detent mechanism to separate off a given number of bobbins in the chutes. Further motion of the box brings it against a cross-bar 58 which operates a mechanism to release the separated groups of bobbins into the receptacle. Removal of the container allows the loading chutes to refill. A modification describes the chute 31 as being' replaced by an extension of the travel of the belts 37 which may be driven at varying speeds to facilitate the turning of the bobbins. The detent mechanism instead of passing between the bobbins may engage in a hole formed in the bobbin head.
Patent GB-1375598-A (GB)
IPC: E06B1/26
Filed: 1972-05-05
Abstract: 1375598 Bending sheet material J I GATES 5 May 1972 [21 May 1971] 31006/73 Divided out of 1375596 Heading B6J Apparatus for bending a strip element into a curve comprises a rigid die defining the curve, a flexible die, means for heating the rigid die and the element, and means retaining the flexible die and the element in the desired curve. The description is identical to that of Specification 1,375,596.