baber/WOPTO huggingface dataset:
Patent GB-178948-A (GB)
Title: Improvements in and relating to superheaters
IPC: F22G1/16
Filed: 1921-01-27
Abstract: 178,948. Robertson, T. E., (Power Specialty Co.). Jan. 27, 1921. U-tube superheaters; superheating-tubes with external coverings.-In a superheater a set of tubes are encased in the fire chamber walls and another set ara situated in the path of the waste gases and are protected from radiant heat. Fig. 3 shows a furnace divided into upper and lower chambers by a partition which consists of superheater tubes 3, cast iron sections 4 threaded thereon, some of which are provided with extensions or eyes whereby they are supported from beams 5, and refractory material 6, the tubes 3 being thus protected from excessive radiant heat. The burner 2 fires the lower chamber and the combustion products pass the bridge 8 into the upper chamber which contains superheater tubes 7 of any known type, which are suitably connected in series or in parallel with the tubes 3, the tubes 7 described being U-shaped. The usual access doors &c. are provided.
Patent GB-547884-A (GB)
Title: Improvements in elbow joints for the retaining arms of hoods of perambulators, push-carts and like vehicles
IPC: B62B9/14
Filed: 1941-03-13
Abstract: 547,884. Hinge joints for stays &c. FALLSHAW, P. C. March 13, 1941, No. 3407. Convention date, March 30, 1940. [Class 65 (ii)] A hinge joint for stays 6, 7 comprises a pair of discs 9, 10 secured to the hinge pin 8 on which the overlapping ends of the stays are pivoted, one of the discs having a part circular flange 11 bridging the space between the discs and serving as a stop for the stays in .open position and as a handgrip for opening them. The other disc has a similar flange 12 extending under the flange 11.
Patent GB-1475792-A (GB)
Title: Brushless direct current motor
IPC: D05B65/02
Filed: 1974-05-10
Abstract: 1475792 Electric motors UNION SPECIAL CORP 10 May 1974 [14 May 1973] 03407/77 Divided out of 1475791 Heading H2A A brushless D.C. motor includes a permanent magnet rotor, three position indicating devices rotatable with the rotor and three sensors, one cooperating with each of the position indicating devices. The first sensor is used to control the motor rotational speed, the second sensor, which is fixed, is used to stop the motor in a given position, and the third sensor, whose position is adjustable, is used to stop the rotor in the selected, adjustable position. In the embodiment, the position indicating devices are formed from metallic segments on a disc that is attached to the rotor, and the sensors are coils that are either on a disc fixed to the motor frame or (for the third sensor) on a manually adjustable disc. The coils form part of a resonant circuit that is detuned by the segments passing the coils, and used in a sewing machine motor speed or stopping position control system (see Division G3).
Patent GB-1206002-A (GB)
Title: A method and apparatus for supplying material into a mould box or core box
Inventor: FAIN ARNOLD IZRAILEVICH
IPC: B22C15/20
Filed: 1968-01-23
Abstract: 1,206,002. Moulding-machines. GOSUDARSTVENNY NAUCHNO - ISSLEDOVATELSKY INSTITUT LITEINOGO MASHINOSTROENIA I LITEINOI TEKNOLOGII. 23 Jan., 1968, No. 3413/68. Heading B3F. To vary the density of a mould or core, some or all of the sand passing on a conveyer 2 to enter a slinger rotor 10 is diverted by an adjustable scraper 5 into a shoot 7 to an opening 8 in the head easing 3 to unite with any batches 17 of sand delivered by the slinger blades 9 and pass with them into the flask or core-box. The scraper 5 is swung to a position across the conveyer belt 2 by a drive 6. The sand is levelled by a member 4 before reaching the scraper 5.
Patent GB-866237-A (GB)
Title: Improvements in or relating to integrating apparatus
IPC: H03M1/00
Filed: 1957-01-31
Abstract: 866,237. Photo-electric evaluating apparatus. PHILIPS ELECTRICAL INDUSTRIES Ltd. Jan. 31, 1957 [Feb. 3, 1956], No. 3430/57. Class 40(3) [Also in Group XXXVI] In apparatus for integrating a record function Y of an independent variable (time), periodic electric pulses are counted during a variable part of a counting period which corresponds to one revolution of a surface which is scanned, the variable part being determined by scanning means which senses the presence or absence of a local quality upon the surface along a scanning path determined by the value of a first function X of the independent variable. A light source 12 is focused on to a cylindrical surface 20 from which it is reflected and focused on to a photoelectric cell 15 which actuates a switch 17 to permit pulses from a generator 18 to be fed to a counter 19. The cylinder is rotated, at constant speed, by electric motor 21; and part of its surface is blackened, the boundary corresponding to a function Y=f(X) where X, Y are the first and second functions of the independent variable (time), to prevent reflection of the light beam on to the cell 15. The scanning means, comprising the light source 12, lenses 13, 14, and cell 15, is attached to a carriage which is moved parallel to the cylinder axis by a screw spindle 10 rotated by servomotor 9; this motor being controlled by the output voltage across the tappings on potentiometers 2, 3 of a bridge circuit; the carriage 11 is thus caused to move along the spindle 10, carrying one tapping along the potentiometer 3 until the bridge is balanced. Thus, as the tapping on potentiometer 2 is moved in accordance with the variable X, the carriage 11 moves similarly to select the corresponding scanning path on the rotating cylinder 20; the pulse counter 19 providing a value of the integral of Y with respect to the independent variable, time. In a second embodiment, Fig. 3 (not shown), a glow-lamp serves both as light source and pulse generator. Alternatively, a steady light source may be used and the reflecting part of the rotating cylinder shaded in parallel bands, Fig. 5 (not shown), to periodically interrupt reflection and thus provide pulses of reflected light. In a third embodiment, Fig. 8, the surface of revolution is a transparent disc 28 part of which is covered with an opaque sheet 27 representative of the function Y=f(X), the disc being rotated by motor 21. A tubular light source 29 extends radially beneath the disc, and light transmitted through the disc is focused on to the cell 15 by the lens 14. The cell operates a relay 17 which on closing causes the pulse generator 18 to operate, the pulses being counted as before. In a fourth embodiment, Fig. 6 (not shown), the opaque sheet is of insulating material, and the rotary disc is of conductive material. The photo-electric scanning mechanism is replaced by an electric contact which rides on the disc and thereby connects the pulse generator to the pulse counter unless the insulating sheet breaks the circuit.
Patent GB-639548-A (GB)
Title: Improved control device for transmission of movements from a transmitter to a receiver
IPC: G08C19/20
Filed: 1947-02-05
Abstract: 639,548. Electric follow-up systems. ABBEY, A. (Arenco Aktiebolag). Feb. 5, 1947, No. 3443. [Class 40 (i)] A step-by-step follow-up system comprises a rotary transmitter the impulses from which are fed to the grids of thermionic valves the anodes of which are connected in series with the respective stator windings of the receiver, the rotor of which is without windings and has less poles than the stator. Fig. 1 shows a resultant field motor M adapted to be advanced step-bystep in accordance with the rotation of a switch arm G the brush 5 of which is such that it contacts two adjacent fixed contacts 1 ... 4 for a time greater than its contact with a single contact. As the transmitter switch arm G rotates, positive from battery 7 is extended over the transmission lines I ... IV in succession to unblock the corresponding thermionic valves 8 ... 11, and energize the corresponding motor fields M1 ... M4. Earthed resistors 19, 20 discharge the transmission lines as soon as they are disconnected by the transmitter switch and serve to increase the possible speed of operation. In Fig. 2, as the transmitter brush 5 rotates, oscillators 28, 29 are excited to oscillate at frequencies f1 ... f4, corresponding to the energization of the respective contacts 1-4. These frequencies are preferably heterodyned with a carrier in a mixer valve 39, transmitted over line 26, which may also be used simultaneously for other signals, and demodulated in the receiver at 40. The respective frequencies f 1 ... f4 operate through, corresponding frequency selective filters 41 and rectifiers 43 to unblock the respective valves 42 which operate the receiver motor M as in Fig. 1. In a modification, Fig. 3 (not shown), transmission is effected over a radio link. The transmitter comprises two simultaneously rotated condenser plates co-operating with four fixed plates to excite sequentially four oscillators at the respective frequencies f1 ... f4. These frequencies are passed by filters to the radio transmitter. At the receiver the respective frequencies are selected by filters in the anode circuits of respective amplifying valves, rectified and then fed to the grids of the four valves 42 which are unblocked thereby to operate the motor M as before. In a modified transmitter, Fig. 4 (not shown), the four oscillators are tuned to the fixed frequencies f1 ... f4 and are each excited by applying to an auxiliary grid thereof a rectified voltage derived from a further oscillator in conjunction with a rotary condenser switch similar to that of Fig. 3.
Patent GB-1489345-A (GB)
Title: Apparatus for examining bodies by means of penetrating radiation
IPC: G01T1/208
Filed: 1975-01-16
Abstract: 1489345 Radiography EMI Ltd 16 Jan 1975 [25 Jan 1974] 03472/74 Heading H4F Apparatus for examining a body using X- or γ-radiation which is scanned relative to the body and detected after it has traversed different paths therethrough, the resulting absorption output signals being processed to derive a representation of a slice through the body, is provided with means for interrupting the radiation at least once during the scanning of each of the different paths and routing the output signals to first and second similar integrating circuits when the radiation is interrupted and non- interrupted respectively, the integrating circuit which is not receiving the output signal being discharged whilst the other circuit receives the output signal and the signals integrated in the first circuit being subtracted from those integrated in the second circuit. This arrangement compensates for errors due to afterglow or phosphorescence of the scintillator crystal in the detector. The radiation may be interrupted by applying a switching waveform to the grid of the X-ray tube or by means of a shutter in the X-ray beam path. Specifically the output from the photomultiplier of the detector is routed via switch 1 to integrating circuit 2 or 3 depending upon whether the X-ray tube is turned on or off. Each time switch 1 is changed the integrator circuit which is no longer receiving the photomultiplier output is discharged at a fixed rate towards a reference potential V by means of switch 4 and the time taken for the charge held in the integrator to decay to the reference potential is used to increase or decrease (AND gates 7 and 8 respectively) the count stored in a counter 5. The resulting count in counter 5 after one complete cycle of operation therefore represents the corrected output signal for a given path. The switches 1, 4, 9 and 10 are all synchronized with the switching of the X-ray tube.
Patent GB-975531-A (GB)
Title: Fastener device for attaching an article to an apertured support
IPC: F16B5/12
Filed: 1962-01-30
Abstract: 975,531. Rivets. UNITED-CARR Inc. Jan. 30, 1962 [Feb. 2, 1961], No. 3481/62. Heading F2H. [Also in Division E2] A fastener, e.g. with a ridge 28 for securing a car moulding strip by its inturned edges, is secured in an aperture 22 of a support 20, Fig. 5, by distortion of a metal cup 18, Fig. 2, in a hollow stud portion 14 of the fastener, inserted in through the aperture, to causing bulging of the stud 14 as indicated in Fig. 5. The fastener, apart from the cup 18, is a moulding of synthetic resin and has a base 10 with a bottom flange 16 on part of its periphery. In a modification, Fig. 11, the base is of rectangular form in plan instead of the truncated form shown in Fig. 4 and the larger portion of the base to one side of the stud 14a is formed at an angle to the rest of the base, extending obliquely in the direction that the stud extends, as shown. A top peripheral flange 30 is interrupted only at each end of the junction line of the oblique portion where the base is thin, Figs. 8, 9 (not shown), except for the middle of the junction line. A groove 36 in the base, around the root of the stud, may receive a filler for waterproofing the anchorage of the fastener. The flexible angled base enables the fastener to be used with bent or flat supports 20a. A small thin tab 34 at each end of the base separates the support surface from the edge of the car moulding strip 24a.
Patent GB-130555-A (GB)
Title: Improvements in or relating to Handles.
IPC: D06F75/34
Filed: 1919-02-13
Abstract: 130,555. Automatic Telephone Manufacturing Co., Archer, C. H., and Simister, G. W. Feb. 13, 1919. Hand-iron handles.-Handles such as are used on electric hand-irons are prevented from rotating on their central supporting rods by a member comprising a flat plate bored for the central rod or bolt and having spikes bent up in opposite directions to enter the wood end of the handle and a hole in the adjacent metal support. As shown, the member 4 is bored for the central bolt 3, which secure the wood handle 2 in the supports 1, and is bent at one end to form a sharp spike 6 which is forced into the end of the handle 2, and at the other end 5 to engage a hole 7 in the support 1.
Patent GB-180723-A (GB)
Title: A new or improved means of sorting and conveying letters and such like
IPC: B07C7/00
Filed: 1921-01-29
Abstract: 180,723. Gribben, P. Jan. 29, 1921. Letters', systems of transmitting and delivering. -Apparatus for sorting and recording letters &c. and conveying them to any part of the sorting- office comprises a frame A provided with a series of slots B, indicating the various destinations of the letters, and two rollers C, one above the other, behind each slot. The rollers are grooved in their centre to accommodate recording-apparatus which comprises a finger-piece f pivoted to one terminal t' of an electric circuit and also to a plunger c adapted to be lifted to contact with a lever h pivoted to the other terminal t by the insertion of a letter, the circuit being completed by a magnetic recording indicator u and an accumulator v. After passing the finger f, the letter is carried between double belts E to a shoot F and thence to one of a system of conveyer belts G provided with channels H to prevent letters from falling off, each shoot F being provided with a stamping-device which stamps the number of the frame on the back of each letter as it passes. The letters are then conveyed between the belts G, J, provided with tension boxes, these tension boxes comprising two side frames L supporting a base m to which is fixed a bracket o provided with holes for accommodating the spindles r of two pulleys q which support the belts G. The pulleys are held together by springs s, and the top holes in the bracket o are slotted to allow for a variation in thickness of the letters, while two springs T, fixed between the frame L and the base plate m, provide a constant tension on the conveyer belts G.
Patent GB-433924-A (GB)
Title: Improvements in or relating to electron tube generators
IPC: H03B5/10
Filed: 1935-02-04
Abstract: 433,924. Valve generating circuits. LORENZ AKT.-GES., C., 1, Lorenzweg, Tempelhof, Berlin. Feb. 4, 1935, No. 3563. Convention date, Feb. 5, 1934. [Class 40 (v)] With the object of preventing load variations from affecting the frequency of a valve oscillator R1 feeding an amplifier R2, magnetic back coupling L1, L2 is used in the oscillator, and capacity coupling is used for coupling the oscillator to the amplifier. The oscillatory circuit of the valve R1 comprises a coil L1 and a split or tapped condenser C1. Back coupling is effected wholly by magnetic coupling of the coil L1 to a grid coil L2, and other accidental coupling is balanced out by a variable condenser N1. A tapping E on the split condenser C1 is earthed, and another tapping A is connected to the grid of the amplifier R2. Back coupling of this amplifier is avoided by connecting its anode through a variable condenser N2 to a tapping B on that side of the earthed tapping E opposite to the tapping A. The known connection indicated by the dotted line G is not used.
Patent GB-221728-A (GB)
Title: Improvements in devices for keeping doors ajar and for preventing them rattling
IPC: E05F7/04
Filed: 1924-02-12
Abstract: 221,728. Rowland, H. E. S. Feb. 12, 1924. Rattling and slamming of doors, preventing and minimizing.-A device designed to hold a door ajar and to prevent it from rattling consists of a rubber or other resilient pad A, with means such as rubber loops B adapted to be slipped over the door handles so that the pad covers the door catch. The loops may be shortened by buckles, or buttons, or other devices, used in connection with perforations D in the loops.
Patent GB-616254-A (GB)
Title: Planimeter with an optical reading-off device
IPC: G01B5/26
Filed: 1945-02-13
Abstract: 616,254. Planimeters. KERN & CO., Ltd. Feb. 13, 1945, No. 3595. Convention date, Nov. 1, 1943. [Class 106 (i)] A planimeter comprises a measuring roller made of transparent material with graduations inscribed on one of its lateral surfaces and a microscope for the reading thereof by transmitted light. In the form described with reference to Fig. 1, both the measuring roller 5 and the counting disc 7 are made of transparent material. A prism 10 projects part of the graduations of the measuring roller 5 through prisms 11 and 12 on to the objective 13 of a microscope. The prism 12 also projects part of the graduations of the counting disc 7 on to the objective 13. The pencil of rays issuing from the objective 13 is refracted by a prism 14 to the eyepiece 15 of the microscope arranged next to the tracing member 3. Illuminating apparatus may be arranged next to the measuring roller 5 comprising a condensing lens 16 and prism 17. In a modification, two measuring mechanisms may be provided as shown in Fig. 2 in which the images of parts of the graduations of measuring rollers 25, 25<1> are projected through prisms 31, 31<1> and 32, 32<1> on to the double prism 33 and thence on to the objective 36 of a microscope. The images of parts of the counting discs 30, 301 are projected through the prisms 34, 341 on to a double prism 35 and thence on to the objective 36. The arrangement is such that the two images of the parts of the graduations of the measuring rollers appear side by side above the images of the counting discs in the eyepiece 38 of the microscope. Specification 616,263 is referred to.
Patent GB-852400-A (GB)
Filed: 1958-11-21
Abstract: The invention comprises dyes of formula:  [R-N=N-R1-]-(SCN)n wherein R is the residue of a diazo compound of the benzene series, R1 is the residue of a pyrazolone coupling component, R and R1 being free of sulphonic and carboxylic acid groups and n is 1 or 2, the thiocyanate groups being attached to R and R1.  The dyes are prepared by the usual coupling reaction from appropriate components many of which are specified.  The dyes give yellow shades on polyester, acetate rayon and synthetic polyamide fibres. In an example the following dyes are specified:-1- amino -2 : 4- dichlorobenzene --> 1-(41- thiocyano-phenyl) -3- methyl -5- pyrazolone, 1-amino -4- thiocyanobenzene --> 1-phenyl- or -(21-chlorophenyl)-3- methyl -5- pyrazolone, 1-amino -2- chloro -4- thiocyanobenzene --> 1-(tetrahydrothiophene-sdioxide-[31]) -3-methyl-5- pyrazolone, 1-amino -2- methyl -4- thiocyanobenzene --> 1- phenyl- or -(21-cyanoethyl)-3-methyl -5- pyrazolone and 1-amino-2-nitro-4-thiocyanobenzene --> 3-methyl -5- pyrazolone. Specification 303,813 is referred to.
Patent GB-104715-A (GB)
Title: An Improved Fuel Vaporizer for Internal Combustion Engines.
Inventor: BINKS CHARLES
IPC: F02M31/18
Filed: 1916-03-11
Abstract: 104,715. Binks, C. March 11, 1916. Vaporizers, external.- The exhaust pipe 2, which is shown in transverse section, has branches 6 at intervals leading from the cylinders and longitudinal ribs 11 on its outer surface. It is enclosed in a casing 1. Combustible mixture enters the casing by a pipe 7 and passes over the ribs 11 on its way to the cylinder admission passages. The lid of the casing has on one side ribs 13: when it is put on with these ribs inside the mixture is directed in a sinuous course over the ribs 11 on the exhaust pipe. In a modification the exhaust passage 2 may occupy the whole height and length of the casing, and pipes may traverse it at intervals to convey the mixture to the cylinders.
Patent GB-376248-A (GB)
Title: Improvements in ventilators
IPC: F23L17/02
Filed: 1931-02-05
Abstract: 376,248. Ventilating shaft tops. CHANARD, A., 280, Avenue de Paris, Rueil, Seine-et-Oise, France. Feb. 5, 1931, No. 3661. Convention date, Feb. 11, 1930. [Class 25.] An outlet ventilator, more particularly of large dimensions, comprises a shaft having outwardly converging nozzles b around the whole of its periphery, the nozzles being long in relation to the peripheral distance separating adjacent nozzles and having the communication with the shaft unobstructed by baffles, and a single screen g curved to the form of an arc in front of each nozzle, the edges h of the screens lying substantially in the plane of the outlet ends of the nozzles, while the walls of the screens form with the corresponding walls of the nozzles inwardly converging passages. also unobstructed by baffles, the angle between the tangential planes at the edges of the screens and the corresponding walls of the nozzles being about 30‹. The screens are secured to the nozzles by means of lugs i or flat bars j. The ventilator is formed with a slightly domed cover c.
Patent GB-1298522-A (GB)
Title: Arrangements for use in magnetic recording and reproducing
IPC: H04N5/781
Filed: 1970-01-26
Abstract: 1298522 Magnetic recording; driving heads NIPPON VICTOR KK 26 Jan 1970 [27 Jan 1969] 3744/70 Heading G5R In a magnetic recording and reproducing system in which a pair of heads 14, 15 are driven alternately and intermittently by respective feed screws 18, 21 to scan closed tracks 11a, 11b on a recording medium as described in Specification 1,269,666, failure of the stepping mechanism to move one of the heads sufficiently is detected and a warning is given. The disc 33 on lead screw 18 has an aperture 32 through which light from lamp 35 passes to illuminate phototransistor 36 once per revolution to provide an output over the angle a, Fig. 8, as the disc rotates. Normally, the position of the discs 33, 33<SP>1</SP> provides outputs O, P which overlap for a short time, but if the rotation of one disc 33<SP>1</SP> is delayed, output R results so that no coincidence occurs and a lamp (98) and buzzer (99) are operated. The heads may then be reset to their initial position by operation of a quick return push-switch (62). The control of the motors 17, 20 in two track steps and their reversal at the end of their paths under the control of frame pulses and the photo-transistors (23, 25, 26) operating as limit switches together with those associated with the discs 33, 33<SP>1</SP> are described with respect to the logic circuits of Fig. 5 (not shown). This circuit also feeds a further logic circuit, Fig. 6 (not shown) to operate warning devices (98, 99) and a lamp (93) when switch (62) is operated.