baber/WOPTO huggingface dataset:
Patent GB-615653-A (GB)
Title: Apparatus for forming plywood panels
IPC: B27D1/08
Filed: 1946-08-08
Abstract: 615,653. Plywood; bending wood. GENERAL PLYWOOD CORPORATION. Aug. 8, 1946, No. 23500. Convention date, April 30, 1944. [Class 145 (ii)] In an apparatus for forming plywood panelsparticularly plywood barrel staves-usually of compound curvature, wherein the bonding material is cured simultaneously with the forming of the desired contour under the effects of heat and pressure, alternate layers of plies 25 (to be bonded and shaped) and metal heattransmitting cauls 24 are arranged between male and female forming headers 18, 21, the cauls conforming in contour to the headers and having their lateral edges projecting outwardly beyond the ply blanks to provide fins for conducting heat to the interiors thereof, whilst a pair of strain rods or straps 27 is provided together with means associated therewith, whereby the whole structure can be compressed and held under static pressure during the forming and bonding process. Platens 10, 15 may be provided, whilst the cauls 24 may be heated directly by hot water or steam pipes 35, Fig. 9, or by high frequency A.C. (Fig. 10, not shown); also locating notches 17, 20, 26 may be provided in the platens, headers and cauls respectively for alignment purposes. In operation, the successive layers of plies and thermosetting resin with the interposed cauls are built up between the headers 18, 21, and the whole placed between the platens 10, 15 and subjected to pressure, e.g. by a hydraulic press 28. The strain rods are slipped over the structure whilst still under pressure and wedges 29 driven home under ribs 30 to draw them tightly against the springs 14 and the platens. The applied pressure is released and the compressed structure placed in an oven, the heat of which is conducted by the metal cauls to the interior of the plies; alternatively the heating is effected by hot water or steam or by highfrequency A.C. The structure is allowed to cool, still under compression by the strain rods 27. The rigid forming headers 18, 21 may be replaced by resilient, e.g. rubber, headers 219, 222, Fig. 11, which by reason of their resilience will conform to the contour of the previously shaped cauls 224; in this case, rods 27 are preferably replaced by straps 227.
Patent GB-240453-A (GB)
IPC: H02H7/12
Filed: 1925-09-21
Abstract: 240,453. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts Ges.). Sept. 26, 1924, [Convention date]. Protective arrangements. - To avoid heavy reverse current in the event of " back ignition " in a rectifier such as a connected to busbars fed by other rectifiers such as b, each rectifier is provided with a high speed reverse current circuit breaker e on the direct current side in addition to an ordinary excess current automatic device d. The reverse current switch may be arranged art any point between the rectifier and bus-bars or between bus-bar sections, and may be a.rranged either to break the circuit completely or to switch in a high ohmic resistance f.
Patent GB-583745-A (GB)
Title: A new or improved hot-water bottle and bed-airer
IPC: A61F7/08
Filed: 1944-11-25
Abstract: 583,745. Hot-water battles. JAMES, G. S. Nov. 25, 1944, No. 23527. [Class 64 (ii)] A flat hot-water bottle and bed-airer 10, preferably a hollow casting of aluminium or light alloy, is provided with a pivotally-mounted handle 13 which is adapted to be releasably retained in. the plane of the bottle or in a plane at right angles thereto. The free end of each arm of the handle may be provided with a head 14 slidably mounted in an opening 15 of a disc member 14' angularly movable in a circular recess 12<1> in a boss 12 on the side of the container and springs 16 are disposed between the head 14 and the base of the opening 15 to urge a projection 17 on the extremity of the arm into engagement with one of two notches 18 in the said recess of the boss 12, the notches 18 corresponding to the required positions of the handle 13 and the boss being closed by a detachable cap 19. In a modification, each arm is pivoted on a boss on the side of the bottle, and co-operating projections and recesses on the bottle and arm respectively are urged into engagement by spring means disposed between the arm and a cap screwed on to the boss. The cross-piece of the handle is preferably provided with a pivoted member 27 which normally lies in a recess within the contour of the handle but may be turned into a position at right angles, and the under surface of the bottle may be formed with spaced projections or feet, not shown.
Patent GB-168902-A (GB)
Title: Improvements in or relating to the production of ammonia from nitrogen and hydrogen
IPC: C01C1/04
Filed: 1921-09-05
Abstract: A catalyst for the synthesis of ammonia is prepared by treating a soluble alkali metal-iron cyanide with an iron salt, the alkali metal-iron cyanide being in excess.  In the example, a solution of ferric chloride is precipitated with a small excess of potassium ferrocyanide.  The catalysts effect the synthesis of ammonia at temperatures below 400 DEG , and at pressures below 100 atmospheres. The Specification as open to inspection under Sect. 91 (3) (a) describes the preparation of a catalyst by the interaction of a complex cyanide, such as potassium ferro- or ferri-cyanide, with any heavy metal salt, being then washed to free it from soluble non-complex compounds.  This subject-matter does not appear in the Specification as accepted.
Patent GB-920345-A (GB)
Title: Improvements in or relating to piston-type compressors
IPC: F04B25/02
Filed: 1960-07-06
Abstract: 920,345. Piston packing. GANZ-MAVAG MOZDONY-, VAGOR-ES GEPGYAR. July 6, 1960 [July 6, 1959], No. 23690/60. Class 122 (1). The piston 1 of a compressor is packed by segmental piston rings 2 made of lubricantimpregnated sintered metal and urged radially outwards by a spring ring 3. The rings 2 may be impregnated with silicone oil. The piston 1 is stepped to provide three stages each having a guide ring 4 with an axial width greater than that of the rings 2.
Patent GB-1444328-A (GB)
Title: Waveguide device
IPC: H01Q3/38
Filed: 1974-05-29
Abstract: 1444328 Aerials RAYTHEON CO 29 May 1974 [11 June 1973] 23844/74 Heading H4A [Also in Division H1] In a phased array antenna system comprising a plurality of antenna elements, apparatus for impedance matching between free space and a ferrite phase shifter disposed within each element and for preventing transmission of modes higher than the dominant mode comprises, a section of waveguide (dimensioned to have a cut-off frequency higher than the highest frequency of the R.F. energy transmitted) and a pair of dielectric media separated by the section of waveguide to act as a pair of inductively coupled resonant circuits the centre frequency of which corresponds to the frequency of the dominant mode and the bandwidth of which corresponds to the band of frequencies to be transmitted, the respective dielectric media providing different propagation time delays. As described, a planar array of phase-changing elements 10, Fig. 1, receives on its rear face radiation from an electromagnetic horn 17. A beam steering computer 15 supplies appropriate control currents to each element, so that the waves from the horn are collimated and are directed as required. Each element 11, Fig. 2, comprises a section of rectangular crosssection waveguide 23 (as shown, the top has been removed) which contains three serially arranged ferrite phase shifters 26a, 26b, 26c and which has impedance matching devices 25, 25<SP>1</SP> at its ends, and driver circuitry 13. The ferrite phase shifters are separated from each other and from the impedance matching element 25 by insulating spacers 30a, 30b, 30c. Control signals from the driver 13 are applied via cables 28a, 28b, 28c. The impedance matching device 25 comprises a circular waveguide structure 27 having disposed therein two spaced apart dielectric material (e.g. bercyllia) slabs 32, 34, which are fastened in place by a suitable epoxy resin. The device 25 is connected to the waveguide 23 by a conductive disc 37, in which is a rectangular slot 41, and which is welded in place. The impedance matching device 25<SP>1</SP> comprises two spaced apart dielectric material slabs 44, 46 between which is an air-filled cavity 48 defined by dielectric material spacers 52, 54.
Patent GB-406362-A (GB)
Title: Improvements in or relating to radio signalling systems
IPC: H04W88/02
Filed: 1932-08-26
Abstract: 406,362. Wireless signalling. STANDARD TELEPHONES & CABLES, Ltd., AXTEN, B. J., and HAMILTON, D., Connaught House, Aldwych, London. Aug. 26, 1932, No. 23879. [Class 40 (v).] Relates to " calling-up " devices of the kind in which an alarm is operated automatically on the receipt of the incoming carrier wave, whether the latter is modulated or not, and without the necessity for using any definite code signal. In a mobile receiving-set, particularly suitable for police work, a lowfrequency oscillation is produced by a tuned transformer H, Fig. 1 (Prov.), which back-couples the valve LF to the valve HF. The corresponding low - frequency modulation of the incoming carrier. wave is rectified at R and used to operate the calling relay C. A switch S short-circuits the transformer A and restores the set for normal reception. Alternatively a high-frequency back-coupling arrangement may be used, (Fig. 2, not shown), to produce a heterodyne note, which is then rectified to operate the calling-device. Or the voltage on the plate of a screen-grid valve may be reduced, on the stand-by setting of a switch, to produce sustained local oscillations, Figs. 3 and 4, not shown), which interact with the received signal as before. In the arrangement illustrated in Fig. 1 (Comp.), the first valve V1 is back-coupled at L1, C5 to generate a low-frequency oscillation which does not pass through the HF intervalve couplings. It does however modulate the incoming carrier-wave, and the rectified and amplified output from the valve V4 may either be used as before or applied through the switch S and transformer L4 to increase the positive bias of an auxiliary valve V5, which is back-coupled through a resistance R8 and a pair of crystal detectors. The resulting increase in current-output is then transferred via a quick-acting relay K to a slow-acting relay B which operates the calling device A.
Patent GB-679788-A (GB)
Title: Improvements in or relating to the manufacture of iso-octyl alcohol
IPC: C07C45/50
Filed: 1950-09-29
Abstract: Iso-octyl alcohol suitable for the manufacture of plasticizers by esterification with di-and poly-basic acids is made by reduction of the aldehyde produced by reaction of CO and H2 in the presence of a carbonylation catalyst with a heptene fraction boiling in the range of 185 DEG  to 215 DEG  F., preferably 190 DEG  to 212 DEG  F. Olefines such as propene, butenes and even pentenes and ethylene, alone or in admixture, are polymerized with, for example, phosphoric acid in kieselguhr and the desired heptene fraction separated. Carbonylation may be effected at 250-450 DEG  F. and 1500-4500 p.s.i. with cobalt naphthenate or oleate as catalyst.  The product not recycled is heated to 300-350 DEG  F. at 100-150 p.s.i. to decompose cobalt carbonyl, filtered and hydrogenated, preferably at 400-550 DEG F. and 2500-3500 p.s.i., with the usual catalysts.  After removal of hydrocarbons overhead, an octyl alcohol cut of 360-385 DEG  F. is taken, and esterified to di-octyl phthalate in known manner.  The plasticizing efficiencies and characteristics of esters made from different C7 olefin feeds are compared.
Patent GB-1169566-A (GB)
Title: Improvements relating to Printing Processes and Apparatus
Inventor: MORRIS KENNETH BRADLEY
IPC: B41F9/00
Filed: 1966-11-24
Abstract: 1,169,566. Printing-machines. CROSFIELDS ELECTRONICS Ltd. 20 Nov., 1967 [24 Nov., 1966; 23 May, 1967], Nos. 52703/66 and 23943/67. Heading B6C. In an intaglio or letterpress printing machine in which the transfer of ink from the printing forme to a web is assisted by an electrostatic field, the field is generated by apparatus including a voltage multiplier 21 enclosed by and rotating with a rotatable member which contacts the impression roller and charges the outside layer thereof, no external leads between the voltage multiplier and the rotatable member being used. The generating roller may comprise a steel casing 18, an insulating layer 17, a metal layer 16 and a conductive rubber outer layer 15. The steel casing 18 and metal layer 16 are charged to opposite polarities by the voltage multiplier 21, which is fed with low voltage from a generator 20. The generator 20 may be external of the roller and make contact by a slip ring and brush (Fig. 6, not shown) or may comprise a dynamo within the roller and fixed thereto, the shaft 26 bearing the rotor winding projecting axially from the roller and being held stationary by a pneumatically actuated brake shoe 28. The pneumatic actuator may be controlled by the rotation of the roller, such that when rotation ceases the brake is released, thereby allowing the shaft to rotate with the roller under manual rotation and preventing electrical generation under these conditions. Alternatively, the shaft may be located entirely within the roller, and braked by an eccentric weight. The generator may be mounted on the end of the roller (Fig. 5, not shown). The voltage multiplier may comprise a rectifier, voltage limiter, oscillator, and rectifier-capacitor multiplying circuit (Figs. 3, 4, not shown), or it may comprise a transformer. The generator may also consist of a battery mounted within the roller, a centrifugal switch being provided which cuts off the supply if the rate of revolution falls below a predetermined value.
Patent GB-1498219-A (GB)
Title: Connecting device for structural elements
IPC: E04B2/78
Filed: 1975-06-03
Abstract: 1498219 Partitioning; structural bars GULLFIBER AB 3 June 1975 [17 June 1974] 23950/75 Headings E1K and E1W [Also in Division F2]  Wall panels 1 are secured together by a connecting device consisting of members 3 of hollow cross-section extending along the adjacent edges of the panels to be joined, and further members 2 including cover plates 7 where no panel 1 is present, there being four members 2, 3 each having a base 4 and lateral webs 5 extending at an angle of 135 degrees to the base, arranged around a common vertical axis such that webs 5 of adjacent members are in abutment and a hollow space 8 is formed between the bases 4, the members 3 being secured by flanges 6 to respective panels 1, and securing means being provided at each end of the assembly of members 2, 3 for tightening the abutting connection between the webs of adjacent members, the securing means consisting of a crown element 9 formed by a ring having slots 10 to receive the pairs of abutting webs 5, the portions between the slots engaging the bases 4 externally of the space 8 to force the webs 5 into engagement. Preferably a hollow plug 11 is afterwards inserted through the interior of the sleeve 9 into the space 8 to strengthen the assembly, the plug 11 having a threaded aperture 13 which, in the case of the lower plug 11, receives a floor-levelling screw (not shown). The hollow spaces between the interiors of panels 1 and the interior faces of the members 3 are preferably filled with foamed plastics material, and sections 17 are preferably secured by screws 18 to the horizontal edge surfaces of the panels. Further strengthening of the assembly is effected by support elements of U section fitted at intervals along the space 8, secured to opposed members 2 by screws 25, and having hooks 19 which engage through apertures 27 in the base 4 of a profile member 3. Preferably, a number of such support elements having hooks 19 facing in opposite directions is used to secure opposed members 3 against separation between their ends. The heads of the screws 25 are recessed in undercuts grooves 16 in the cover plates 7 which are also used to accommodate the heads of screws (not shown) for attaching further components.
Patent GB-601180-A (GB)
Title: Improvements in earth-inductor compasses
IPC: G01C17/36
Filed: 1945-09-17
Abstract: 601,180. Earth inductor compasses. BENDIX AVIATION CORPORATION. Sept. 17, 1945, No. 24009. Convention date, Sept. 2, 1944. [Class 37] [Also in Group XXXVIII] An earth inductor compass of the kind described in Specification 549,528 has the saturating winding supplied with undulating current produced by a D.C. source in series with an A.C. source, the output of the secondary windings then being of the same frequency as that of the A.C. source, so that a frequency doubler is not required. An inductor 10 has an exciting winding 18 connected to the secondary winding 21 of a transformer 22 in series with a battery 24, so that the winding 18 is fed with an undulating unidirectional current. Secondary windings 15, 16, 17 on the legs 11, 12, 13 of the inductor 10 are connected to stator windings 28, 29, 30 of an inductive device 31 having inductively coupled therewith a rotor 32 carrying a winding 33. This is connected through an amplifier 36 to one phase 39 of a two-phase induction motor 40, the second phase 41 of which is connected to the A.C. source 23 that supplies the transformer 22. The rotor 44 of the motor 40 is geared to the rotor 32 through gearing 45 and a shaft 46 which carries a pointer 47 indicating on a compass card 48. The core 14 of the inductor 10 is saturated once per cycle of the A.C. from the source 23 so that a voltage of the same frequency as that of the source 23 is induced in the windings 15, 16, 17 due to the earth's field passing through a magnetic circuit of varying reluctance. The motor 40 drives the rotor 32 towards a null position normal to the resultant magnetic field produced by the stator windings, the pointer 47 then indicating the relative displacement between the inductor 10 and the earth's field. In a modification, the amplifier 36 and motor 40 are omitted and the rotor winding 32 is connected directly to the source 23. In order to prevent errors due to leakage flux, an additional ring similar to the ring 14 may be provided, each ring being wound with a primary winding so that the fluxes therein are in opposite directions. The two rings are fastened together.
Patent GB-615005-A (GB)
Title: Improvements in or relating to nut crackers, applicable also to clamps
IPC: A47J43/26
Filed: 1946-08-13
Abstract: 615,005. Clamps. SAVAGE, E. Aug. 13, 1946, No. 24032. [Class 61 (ii)] [Also in Group XIV] A carpenters' &c. clamp also usuable for cracking a nut 16 comprises a frame 1 of slotted construction 5 which may be formed by bending a metal strip on itself to provide a handle 2 at one end and jaw support 3 at the other completed by a filling piece 4, an operating screw 13 carrying a handle 15 and a rotatably mounted jaw 14 and an adjustable tilt locking jaw 7 with a bifurcated lower end straddling the upper limb of the frame and a cross-bar 9 located in the gap 5 of the frame, a projection 11 on the jaw being adapted for locking engagement with holes 12 on the frame limb.
Patent GB-672676-A (GB)
Title: Improvements in or relating to toothbrushes
IPC: A61C17/24
Filed: 1948-09-13
Abstract: 672,676. Rotary tooth brushes; shields. LIVINGSTON, G. H. Dec. 9, 1948 (Sept. 13, 1948], No. 24042/48. Class 19. A tooth-brush comprises a handle in which is rotatably mounted a spindle formed at one end with a crank handle and at the opposite end provided with bristles for rotation against the surface of the teeth, said handle being provided integrally with a shield adapted to shield the bristles through at least 180 degrees of their rotation. As shown, the tooth-brush comprises a handle A made of plastic or other suitable material and provided with a longitudinal bore in which is rotatably mounted a spindle B composed, for example, of twisted wire or of plastic with bristles C secured thereto made, for example, of nylon. The cranked end D of the spindle is provided with a handle E. The main handle A of the brush is enlarged into a semicircular form F at the brush end to provide the shield. The back of the brush may have holes to facilitate cleaning. The brush-head may be detachable from the spindle and may have a cushioned end or one with the bristles splayed over it. According to the Provisional Specification, the shield and cranked handle are optional.
Patent GB-1505304-A (GB)
Title: Method and apparatus for treating textile yarn
IPC: D06B1/16
Filed: 1975-06-04
Abstract: 1505304 Fluid treatment of yarns RHONEPOULENC-TEXTILE 4 June 1975 [10 June 1974] 24137/75 Heading D1L Yarns are treated with a fluid e.g. dye, size, water, steam or particles, by passing the yarn through a groove 2 into which the fluid is supplied from tangential orifices 3 therein so as to maintain the yarn in suspension out of contact with the walls of the groove. As shown the grooves are helical on the surface of a hollow cylindrical body 1 into the interior 4 of which the fluid is supplied from inlet 5. Various alternative groove shapes are illustrated in Figs; 4-8 (not shown). Two cylindrical bodies 1 may be used in series [Fig. 9 (not shown)], the yarn passing between successive turns of each body through two sets of false twist nozzles 8.
Patent GB-140365-A (GB)
Title: Improvements in and relating to spring spindles for bobbin winding frames, doubling winding frames, shuttles and the like
IPC: B65H49/06
Filed: 1919-10-03
Abstract: 140,365. Proton, A. March 18, 1919, [Convention date]. Shuttles.-Spindles for shuttles are provided with recesses 2, 3, and a spring 5 for securing the bobbin or cop-tube thereon is bent at one end 6 to engage a hole 7 and engages a groove in the part separating the recesses 2, 3. The projecting part 6 of the spring forms a stop for the bobbin or tube. Two springs with corresponding recesses oppositely disposed on the spindle may be used.
Patent GB-1128834-A (GB)
Title: Method of making watchbands
IPC: A44C5/02
Filed: 1966-05-31
Abstract: 1,128,834. Bracelets. J. I. MUSHEY. 31 May, 1966, No. 24219/66. Heading A3H. [Also in Division B3] A flexible watchband includes a pair of components 10, 12 joined to an expansible clasp box assembly 14 and the opposing ends of the components are formed with end connectors 16 and rings 18 for connection to a wristwatch or the like. The components 10, 12 comprise individual elements 22 of precious or semi-precious metal gripping a wire mesh 20.
Patent GB-240654-A (GB)
Title: Improvements in valve chests for rock drills
IPC: E21B1/30
Filed: 1924-10-13
Abstract: 240,654. Marks, E. C. R., (Ingersoll-Rand Co.). Oct. 13, 1924. Valve chests and casings.- In percussive drills wherein a fluid-actuated distributing-valve works in spaced, flanged bushes in the ends of the valve-chest such as described in Specification 207,036, [Class 122 (ii), Steam-engine distributing and expansion valves &c.], the bushings are formed unsymmetrically to prevent improper insertion in the valve-chests. Flattened portions e, f are arranged at different radial distances from the axes and engages parts j, k on the cylinder or valve-chest casting. The bushes are radially grooved at o, and a locking-washer is arranged beneath the nut of the bolt securing the bushes in position, and has bent fingers s which engage a face on the nut and the groove respectively. The bolt head r is similarly locked.
Patent GB-480118-A (GB)
Title: Improvements in dynamo-electric machines
IPC: H02K39/00
Filed: 1936-09-05
Abstract: 480,118. Inductor -alternators. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 5, 1936, No. 24326. Convention date, Sept. 6, 1935. [Class 35] The stator of an inductoralternator has large slots containing a plurality of coil sides, the other sides of these coils being distributed in small slots between the large slots. In the form shown, the large stator slots N contain a number of coil sides and the other sides of the coils are distributed in small slots n. Each group of stator coils may be electrically independent of the others in which case the number of polar projections on the rotor should be one less than the number of coil groups. Both elements of the generator may rotate, e.g. they may be each driven by a synchronous motor. The generator voltage has an asymmetrical wave form.