baber/WOPTO huggingface dataset:
Patent GB-841512-A (GB)
Title: Improvements in and relating to apparatus for launching mechanical vibrations
Inventor: BRADFIELD GEOFFREY
IPC: G01N29/24
Filed: 1955-06-06
Abstract: 841,512. Piezo-electric instruments; ultrasonic wave couplings. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 6, 1956 [June 6, 1955], No. 17090/56. Divided out of 841,511. Class 40 (4). [Also in Groups XL (b) and XL (c)] A piezo-electric transducer capable of selective operation in one of a number of contiguous frequency bands, e.g. 0.7-1.8 Mc/s., 1.8-3.0 Mc/s. and 3.0-6.5 Mc/s., comprises three or four alternately-polarized crystal layers 11 ... 14, Fig. 1, of equal thickness cemented together with electrodes a . . . e between the layers and on the end faces, the electrical input (when used as a transmitting transducer) being applied to electrode c, b or d and e (d only for a three-layer transducer) according to the required frequency band, the other electrodes being earthed or used for monitoring (see below). If only three crystal layers are employed the corresponding frequency bands will be somewhat narrower. The front electrode a is in the form of, or attached to, a metal diaphragm 16 and the rear electrode e is cemented to a dissipative backing comprising a dense powder such as tungsten or carbonyl iron embedded in a plastic material also containing fibrous material such as asbestos. Each layer may comprise an X-cut alpha quartz crystal, the Y axes of the crystals being aligned to minimize effects due to anisotropic thermal expansion; in this case the diaphragm metal is preferably titanium. Alternatively each layer may comprise a ceramic piezo-electric material such as barium titanate which may have admixtures of calcium titanate and/or lead titanate or of zirconates or niobates, e.g. 96% barium titanate and 4% lead titanate; in this case the diaphragm metal is preferably an alloy comprising 29% nickel, 17% cobalt and the rest iron. As shown in Figs. 2 and 3 the transducer 61 may be coupled to a liquid 65 containing an object under test by mounting it on a flat face 62 of a block of highly elastic fine-grained material, e.g. titanium, which tapers downwardly from the mounting face 62 to a flat bottom surface 64 in contact with the liquid, the upper portion 66 of the coupling-block being tapered and enclosed in absorptive material 71 similar to that used for the backing 15, Fig. 1, to absorb the waves 69 reflected from the interface. Spiral grooves 72, Fig. 3, are provided in the lower surface of the block to prevent coherent internal reflection thereat. The transducer may be combined with a coupling means for inducing shear waves in a solid workpiece which is adapted to provide an indication of the coupling efficiency as described in the parent Specification with reference to Fig. 10 therein. Specifications 766,982, 766,983, 766,984 and 772,083 also are referred to.
Patent GB-257703-A (GB)
Title: Improvements in and connected with supporting brackets of the suction type
IPC: A47B96/06
Filed: 1925-07-03
Abstract: 257,703. Everitt, J. July 3, 1925. Brackets, adjusting and securing.- A bracket comprises the combination with a suction disc a carried at one end of a horizontal bar c of a vertical strut d slidably engaging the other end of the bar and having its lower end cranked inwardly to form one or more members d<4> to rest against the wall. The strut d projects above the bar c and is provided with a flat head g to support a shelf. In a modification the head g is replaced by one or more rods formed as a right-angled continuation of the strut or secured in a member connected, by a ball-andsocket or equivalent joint, to the strut.
Patent GB-770825-A (GB)
Title: Improvements in and relating to annular plate check valves
IPC: F04B39/10
Filed: 1955-06-14
Abstract: 770,825. Non-return valves. HOERBIGER, M. June 14, 1955 [Sept. 13, 1954], No. 17092/55. Class 135. In an annular plate valve for compressors &c., the valve and spring plates 4, 5 respectively are located angularly by two pins 7 subtending at the centre of the valve an angle other than 0 or 180 degrees. The pins may be at different radial distances from the centre of the valve or of different diameters.
Patent GB-1021937-A (GB)
Title: Organic silicon compounds and their preparation
IPC: C07F7/08
Filed: 1963-05-01
Abstract: Polymers of the formula <FORM:1021937/C3/1> wherein n is an integer greater than 1, and preferably from 2 to 5, can be made by cohydrolyzing (a) a phenyldimethylhalosilane and (b) a phenylene-bis-(dimethylhalosilane), and recovering the above polymer or a mixture of such polymers, from the resulting aqueous mixture, e.g. by solvent extraction and subsequent distillation.  In the Example (A) a polymer of the above formula in which n = 2, and (B) a mixture of polymers of the above formula in which n \sF 2, were made in the above manner.  Uses.-As lubricants and heat transfer fluids.
Patent GB-883421-A (GB)
Title: Improvements in or relating to an optical apparatus
IPC: G03B21/11
Filed: 1958-02-11
Abstract: 883,421. Optical projection apparatus. EASTMAN KODAK CO. Feb. 11, 1958 [Feb. 11, 1957], No. 17202/61. Divided out of 883,419. Class 97(1). An optical apparatus comprises means for supporting in a fixed plane an element bearing a plurality of rows of images, means for mounting said supporting means to permit movement of the element in directions normal to each other in said plane with respect to an optical station, means operatively connected to said supporting means for moving said element in one of said directions and for resolving movement of said element in the other direction into an oblique movement in said plane, means operatively connected to said supporting means for reciprocating said element in the other of said directions, and drive means interconnecting both of said moving means for simultaneous operation thereof, whereby the resultant movement of the element is the vector sum of the movement in said one direction and said oblique movement. The apparatus is described as applied to the optical viewing apparatus of Specification 883,419 for the successive viewing of a series of images on an image bearing element at a viewing station, Fig. 16, which comprises a glass platen 135 accommodated in the holder 133 communicating with a vacuum pump so that when an element on a perforated plate is pressed against the platen 135, the vacuum on the plate is released and the element is retained against the platen 135 by suction. The holder 133 of the glass platen 135 is mounted on a C-shaped member which is slidable on guides 132, Fig. 11, these guides being carried by a block 153, slidable on orthogonal guides 134, separated by plates 149 and 148. The C- shaped member is movable in the direction of guides 132 by a rack and helical pinion 156, which is clutched at 164 and 173 to an external knob 31, which also rotates a gear 170. This gear rotates a shaft 176 carrying a cam 178 engaged by a follower 181 connected at 180 to the block 153 is reciprocable along the guides 131. Thus, by rotating the knob 31 the element carried by the platen 135 has a compound movement such as to introduce each image into the light path. By axially moving the knob 31 the clutch 164, 173 is disengaged but the helical pinion can still be rotated by a pin and slot connection with the knob, and shaft 176 is uncoupled from the gear 170, so that this shaft can be reciprocated independently of the rotation of the knob 31. Specification 883,420 also is referred to.
Patent GB-620053-A (GB)
Title: System for communication of electrical signals
IPC: H04B14/02
Filed: 1946-06-06
Abstract: 620,053. Radio signalling. STANDARD TELEPHONES & CABLES, Ltd. June 6, 1946, No. 17260. Convention date, June 19, 1945. [Class 40 (v)] A carrier wave is amplitude modulated and clipped, e.g. by a double limiter, to produce a wave-form 4 with pulses of varying slopes, and higher harmonics are removed from it by a band-pass filter to reduce the transmission bandwidth as necessary. A wave-form 7 (Fig. 2), results, having improved signal to noise ratio, occupying only a frequency band several times that of the A.M. wave, and not requiring linear amplification. This is detected by a receiver employing a double gate limiter, and a differentiating circuit or harmonic selector which converts the signal slopes to pulses of variable magnitude which are detected by a peakresponsive detector. A crystal controlled oscillator is used and several stages of filtering and amplification modulated from a same audiofrequency source may be adopted. Specification 598,133 is referred to.
Patent GB-1043997-A (GB)
Title: Improvements in or relating to photographic materials
Inventor: DERSCH FRITZ
IPC: G03C1/34
Filed: 1964-04-27
Abstract: 1,043,997. Stabilizing photographic emulsions. GENERALE ANILINE & FILM CORPORATION. April 27, 1964 [May 16, 1963], No. 17283/64. Heading G2C. Diphenyldisulphide-2, 21- or 3, 3<SP>1</SP>- or 4,4<SP>1</SP>- dicarboxylic acid is used as a stabilizer and antifoggant for silver halide emulsions. It may be incorporated into the silver halide emulsion or an adjacent layer or added to a processing solution such as the developer.
Patent GB-731890-A (GB)
Title: Electric arc welding torch with a liquid-cooled non-consuming electrode
IPC: B23K9/28
Filed: 1953-06-22
Abstract: 731,890. Arc welding electrode holder. SOC. L'AIR LIQUIDE, SOC. ANON. POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES G. CLAUDE. June 22, 1953 [June 23, 1952], No. 17285/53. Class 39 (3). [Also in Group XXII] An electric arc welding torch comprising a non-consuming electrode cooled by direct contact with a liquid contained inside a cooling chamber surrounding the electrode and provided, for sealing the chamber from the outside, with an annular joint surrounding the electrode near the end whence the arc starts is characterized in that the joint is of an elastic material, such as rubber. A non-consuming electrode 17 is clamped in the body of the torch by the split end 39 of a sleeve 21, the sleeve 21 being pressed up by a socket 15, threaded on the torch casing 12, to urge the end 39 against a conical seating 38 in the torch body. Cooling water is supplied through a duct 5 in the handle to an inner compartment 33 to pass up this compartment through holes 32 down an outer compartment 34 to an outlet duct 6 in the handle. The lower end of the compartment 33 is sealed by a rubber joint 25 between the electrode and the sleeve 21 and by a rubber joint 28 between the sleeve 21 and the casing 12. Argon, for shielding the arc, is supplied by a duct 4 in the handle to pass between the sleeve 21 and the casing 12 through holes 20 in the socket member 15 to a duct 16 of refractory material surrounding the electrode and secured to the socket 15.
Patent GB-721326-A (GB)
Title: Improvements in or relating to the moulding of polymeric materials
Inventor: HOLT SIDNEY
IPC: B29C43/00
Filed: 1952-07-09
Abstract: 721.326. Injection-moulding dentures and other articles. IMPERIAL CHEMICAL INDUSTRIES, Ltd. June 29, 1953 [July 9, 1952], No. 1729/52. Class 87 (2). Polymeric synthetic organic thermoplastic material is completely enclosed within a sheet, foil or film of a material capable of protecting the polymeric material against oxidation by atmospheric oxidation, the pack so formed is placed within a metal chamber before or after the pack is heated, and the pack is subjected to pressure in the metal chamber to inject the polymeric material into a mould. A duct connects the metal chamber to the mould, and means are provided for piercing the protective sheet in the region of the duct to allow the polymeric material to flow freely into the duct. Fig. 1 shows a pack comprising a casing 1 that contains two pellets 3 of polymeric material and a hollow plunger-like cap 2, the casing and the cap being made of thin aluminium sheet. This pack, preheated to 300 degrees C. when the material is nylon, is placed in a metal container 4 having a duct 7 communicating with a dental flask 9. Athwart the duct is disposed a metal cutter 8, and when'a plunger 13, fitting within the cap 2, is forced down the cutter ruptures the casing 1 to allow egress of the nylon. Instead of the cutter 8, a rough edge may be left on the inner surface of the container 4, at the duct. The hand press shown preferably has a multi-start screw, for rapidly applying pressure. The protective sheet may be made of a material having a melting or softening point lower than that of the polymeric material, and a lower specific gravity in the molten state; e.g. it may be of polythene when the polymeric material is nylon; in such a case a cover adapted to swivel across the duct is provided to prevent the polymeric material flowing prematurely into the mould. The polymeric material may be merely wrapped in the protective sheet, in which case it may be heated in the container. The polymeric material may be polyamides, e.g. polyhexamethylene sebacamide, polyesters, polythene polyethylene terephthalate or polytrifluoromonochloroethylene. The article made may be a denture, a prototype for testing, or a solid block or rod that is to be machined into a gear wheel or used for making a moulded joint in an electric cable. The mould may be made from an alloy of lead, tin or bismuth, or from plaster of Paris, oxyphosphate cement, oxychloride cement or silicate cement. Specification 661,166 is referred to.
Patent GB-751430-A (GB)
Title: Improvements in or relating to lamp shades
IPC: F21V11/00
Filed: 1954-06-14
Abstract: 751,430. Lamp masks. ZWICK, F. June 14, 1954 [June 15, 1953], No. 17363/54. Class 75(4). A unit 3 for constructing a, grid-like lamp mask by joining together a plurality of such units has the shape of a hollow rectangular prism and has integral coupling means disposed on its outer surface. The coupling means comprises pins 2 and sockets 1 located either at the corners of the unit, Fig. 1, or at the ends of extensions of the walls of the unit and at the ends of extensions of partitions 6, 7 arranged parallel to the walls of the unit, Fig. 7. Alternatively the coupling means may comprise a pin extending through aligned cylindrical members on the units. Each light passage in the unit is preferably of square section and the wall and partition extensions are preferably equal to half the length of each wall so that when the units are assembled further light passages of square section are formed between the units. Specification 683,972 is referred to.
Patent GB-1099166-A (GB)
Title: Pressure-regulating arrangement for pressure-tight goods passing devices on pressure vessels for the treatment of textile full-width goods
IPC: C09D125/14
Filed: 1966-04-21
Abstract: 1,099,166. Textile treating apparatus. JOH. KLEINEWEFERS SOHNE. April 21, 1966 [July 2, 1965], No. 17463/66. Heading D1L. In the passage of open-width textile material through a pressure chamber 1, in which it is subjected to steam, the inlet and outlet are sealed by means of hydraulic or pneumatic sealing membranes 2, the pressure of which is adjustable. The adjusting mechanism comprises a double-acting cylinder 8, the piston 12 of which is acted upon on the one side by the internal pressure in the chamber 1 by means of a pipe 14, and on the other side acts on the pressure medium of the sealing membranes by means of a return pipe 9 of a circulatory system of the medium. The necessary excess pressure at the membranes is produced by additional pressure on the piston rod, e.g. by superposed weights or by means of a pneumatic pressure. Compensatory adjustments to the pressure at the membranes are effected by a throttle 10 disposed in the return pipe 9 and controlled by variations in the tension of the material passing through the chamber 1. The variation in tension is communicated to the throttle by means of a darcer-roll 21 and lever 23. The piston rod is preferably hollow and is connected to a condensing unit to remove condensate forming on the upper surface of the piston 12. The circulatory system for the pressure medium includes a cooling system 11.
Patent GB-222578-A (GB)
Title: Improvements in or relating to electromagnetic transmission of power on vehicles
IPC: B61C9/24
Filed: 1923-07-05
Abstract: 222,578. Hobdell, Way, & Co., Ltd., and Payne, M. July 5, 1923. Electromechanical apparatus; motors and dynamos, mounting.-A rail bogie is provided with an internal combustion engine having horizontal cylinders, an axle driven by an electromagnetic clutch adapted to form a generator and a second axle driven bv an electromotor supplied with current from the generator. In the motor bogie shown in plan in Fig. 2, an internal-combustion engine with horizontally opposed cylinders 15 is rigidly connected to .a bracket 17 carrying the generator 2, 3 and pivoted to the axle 7. This unit is also supported from transverse bogie frame members 20 by springs on which legs on the unit bear. The outer member 2 of the generator is driven by the engine and the inner member is geared to the axle by a reverse bevel gear in which either bewel wheel 6, 6a is put in operation by a clutch 24. One of the motors 9 is geared to the axle 12 and is similarly pivoted on this axle and supported from the bogie frame by springs.
Patent GB-1139263-A (GB)
Title: Improvements relating to selectable count counters
IPC: H03K25/00
Filed: 1966-04-21
Abstract: 1,139,263. Electronic counters. GENERAL TIME CORP. 21 April, 1966 [10 May, 1965], No. 17537/66. Heading G4A. In an electronic counter for indicating when a pre-selected count of input pulses has been made, variable counters, one for each digit position, are sequentially enabled so that initially a first variable counter is enabled to count a number of input pulses corresponding to the highestorder digit of the pre-selected count, then a second variable counter in the sequence is enabled to count the next-lowest order digit of the count, and so on until a last variable counter counts the lowest order digit of the count, and then emits a count completed pulse. Pulses from a source 20 are sent via a pulse former 26u and three cascaded fixed decade counters 30t, 30h, 30th to the input of a first AND gate 44th, the first pulse also travelling via line 82 to set a flip-flop 48th which then enables AND gate 44th. Output pulses from decade counter 30th, each representing 1,000 source pulses, pass through gate 44th and are applied to the first variable counter 40th, a signal pulse emerging through diode Dlth when the " thousands " count, determined by the preset modulus of counter 40th, is complete. This signal pulse sets a second flip-flop 48h to enable AND gate 44h and allow counter 40h to count output pulses from decade counter 30h, which pulses will represent " hundreds " of source pulses. Similarly " tens " and " units " of source pulses are counted by variable counters 40t, 40u, the latter emitting a "count completed" pulse to a terminating module 70 which then supplies on line 72 a control pulse for some external apparatus, and which also supplies reset pulses to zeroize all the counters and to reset the flipflops. Each counter may be of the magnetic cup and bucket type, the variable counters including means to change the volt-second content of input pulses applied to their magnetic cores and so vary their counting ratios. The circuit is said to include transistors.
Patent GB-913560-A (GB)
Title: Apparatus for stacking newspapers and the like
IPC: B65H33/16
Filed: 1960-05-18
Abstract: 913,560. Delivering sheets in counted batches. BONNIERFORETAGEN A.B. May 18, 1960 [May 21, 1959], No. 17566/60. Class 100 (1). Appparatus for stacking newspapers 2 or the like which are advanced in a continuous stream 1 comprises an endless conveyer 13 which carries a plurality of supports 21, 21a-21e, projecting outwards at regular intervals from the plane of the conveyer, the free ends of the supports engaging the stream 1 at a certain point 23 in their path of movement so as to cause a certain number of newspapers 2 to be stacked on each support before the next following support engages the stream. The stream 1 is fed between upper and lower endless belts 3, 4 towards the conveyer 13; the belts pass round pulleys 5, 6 at the delivery end thereof. The conveyer 13 consists of two spaced, parallel belts or chains running round pulleys 9-12. Each of the supports 21, 21a-21e consists of two arms which project at right-angles from members 25, 25a-25e secured to the belts of the conveyer 13. A long, narrow roller is mounted between the outer ends of the arms to facilitate division of the stream of newspapers at the point 23, and as the conveyer 13 is driven the rollers follow the path indicated by the line 22. In the position shown the support 21e has just engaged the stream 1 in such a way that the newspaper 2b will pass beneath the support to become the top newspaper of a pile 7 on the support 21 and the newspaper 2a will pass above the support to become the bottom newspaper of a pile on the support 21e. The conveyer 13 is driven continuously so that the flow of newspapers to the new pile on the support is eventually interrupted by the engagement of the support 21d with the stream. The piles of newspapers are delivered from the supports to a roller conveyer 31, the arms of the supports passing between the rollers of the conveyer 31. Vibration plates 26 on either side of the conveyer 13 align the newspapers as they are fed to the supports. During the formation of a pile the bottom edges of the newspapers rest upon an endless driven belt 27 which is located between the belts of the conveyer 13 and the upper run of which projects slightly above the surface of the members 25. The belt 27 is driven in the same direction as but at a higher speed than the conveyer 13 so that the lower edges of the newspapers are moved in the direction of the support arms. The drive for the conveyers 13 and 31 is taken from a wheel 14 on a driven shaft via change-speed gear-boxes 16, 18; the drive for the belts 3, 4 is taken from the same shaft. By variation of the relative speeds of the belts 3, 4 and the conveyer 13 the number of newspapers in each pile can be varied.
Patent GB-184950-A (GB)
Title: Improvements in and relating to electric switch boxes
IPC: H01H9/10
Filed: 1921-06-28
Abstract: 184,950. British Thomson - Houston Co., Ltd., (General Electric Co.). June 28, 1921. Switch mechanism interlocking with lids; indicators.-A switch box has a lid in two parts 10, 11 hinged together at 12. The part 10 is normally screwed to the box 5 by screws 15 and has a slot 14 through which the switch handle 13 projects. The section 11 has a projection 26 which moves through a hole 27 in the cover section 10 when the section 11 is opened and the switch is off. But a locking- member 21 is moved bv the handle 13 to cover the hole 27 when the switch is on. Guiding-flanges 20 are provided to co-operate with flanges 22 on the member 21, and a bridge 24 also serves as an indicator. Holes 23 are provided in flanges 22 to lock the switch. Locking-means for the cover 11 are provided by an upstanding lug 28 perforated at 29 and passing through a hole 30 in the cover. To remove the cover 10, the cover 11 must first be moved, the screws 15 removed and the whole lid slid along to free the flange 16 beyond the screw 18. An insulating partition 9 separate the switch and fuse chambers.
Patent GB-430692-A (GB)
Title: Improvements in or relating to elastic braided work containing rubber threads and method of and means for making same
IPC: D04C1/08
Filed: 1934-06-15
Abstract: 430,692. Braid. KRENZLER, E., 23, Sanderstrasse, Barmen, Wuppertal, Germany. June 15, 1934, No. 17809. [Class 74 (i)] An elastic braided fabric has rubber threads d extending longitudinally through it, braided throughout by at least triple thread binding h. The fabric may be made in a lace braiding machine, e.g. as described in Specification 11941/14, [Class 74 (i)], employing alternately moving braiding plates a, a<1> with three or more bobbins b, the plates being arrested after each quarter &c. revolution. The rubber threads d are worked in by means of bores g in the appropriate plates, and the braiding threads h are moved upwards along the rubber threads d by two groups of beaters acting alternately towards the braiding point. Patterning f may be effected by holding stationary the corresponding plates a, a<1>.