baber/WOPTO huggingface dataset:
Patent GB-1010804-A (GB)
Title: Method of making solid composition resistors of monolithic structure
Inventor: SATO GORO
IPC: H01C7/00
Filed: 1961-11-14
Abstract: 1,010,804. Ohmic resistors. MITSUBISHI DENKI KABUSHIKI-KAISHA. Nov. 14, 1961, No. 40641/61. Heading H1S. A resistor is made by impregnating a porous body of insulating refractory material with a material which on firing yields electrically conductive material, firing the body, and subsequently removing or rendering non-conductive the conductive material in the surface layers of the body. The resistor shown in Fig. 1c is formed by grinding up specified amounts of certain oxides, mixing them with water, firing at 1260-1300‹ C., and dividing the resulting mass into fine particles, which are then mixed with gelatin or polyvinyl alcohol and water and injection moulded to form a rod After sintering at 1200-1260‹ C. to a porosity of 5-25%, the rod is subdivided and contacts of graphite or metal powder pressed into recesses formed in the ends of the resulting rods. The rods are then uniformly vacuum impregnated with a solution containing a nitrate of nickel, molybdenum, thorium or titanium and/or a synthetic resin, dried, and fired in vacuum, or inert or reducing gas to decompose the impregnant to metal and/or carbon. After repetition, if desired, of the impregnation and firing steps the rod is fired in air for a sufficient time to oxidize the metal or carbon adjacent the surface to give the rod a predetermined resistance and an insulating coating. After densifying the surface layer by sintering at 1270-1350‹ C. in vacuum or inert or reducing gas, the contacts are impregnated with epoxy or silicone resin, and leads pressed into the resin after partial curing and fixed by completion of the curing. Heat resistant paint may then be applied. A resistor (Fig. 2) with a coil-shaped resistive path is formed from a threaded rod by a modified process. The resistive track of a potentiometer may be formed from an annular wedge-shaped member (Fig. 3) or a flat member of the form shown in Fig. 5, formed by compression shaping, by steps similar to those outlined above except that during the air firing step oxidation of one face of the member is prevented by a masking layer of graphite. The region 36 (Fig. 3) or 52 (Fig. 5) of reduced thickness is, however, oxidized throughout to electrically isolate the ends of the resistive track 32 or 52. The masking is subsequently removed to expose the C- or U-shaped resistive track which co-operates with a sliding arm to form a potentiometer. In the Fig. 3 arrangement the wedge shape of the annulus results in a potentiometer with a non-linear characteristic.
Patent GB-1288327-A (GB)
IPC: B66C23/697
Filed: 1970-08-24
Abstract: 1288327 Lever load handling devices on vehicles; jib cranes CRUTCHER RESOURCES CORP 24 Aug 1970 [28 May 1970] 40698/70 Heading B8B B8E and B8H A vehicle for carrying elongate loads is provided with a side-loading device comprising a pair of interconnected two-section articulated booms 4, 5 mounted on a support 3 at one side of the vehicle and adapted to be projected beyond the other side of the vehicle. The outer ends of the booms are provided with hydraulic winches 13, connected to load-engaging hooks or magnets, or forks, Fig. 5 (not shown). A control cab is provided at the same side of the vehicle as the support 3. In a modification, Figs. 6-10 (not shown), the two booms are mounted on a support which is rotatable about a vertical axis, and each section of each boom is telescopic.
Patent GB-1215978-A (GB)
Title: Brazing alloys and the production of ceramic-to-ceramic and ceramic-to-metal joints
Inventor: SAVAGE RONALD
IPC: C04B37/00
Filed: 1968-08-27
Abstract: 1,215,978. Ceramic seals. INTERNATIONAL NICKEL Ltd. 11 Aug., 1969 [27 Aug., 1968], No. 40890/68. Heading B3V. [Also in Division C7] A brazing alloy for the production of ceramicto-ceramic and ceramic-to-metal joints consists, by weight, of  Thealloy is crushed and ball-milled and the resulting powder formed into a slurry in e.g. acetone to be painted on to the surfaces to be joined.
Patent GB-1367878-A (GB)
Title: Flues
IPC: E04H12/28
Filed: 1970-08-27
Abstract: 1367878 Pipe couplings PRINCES INDUSTRIAL DEVELOPMENT CO Ltd 26 Aug 1971 [27 Aug 1970] 41256/70 Heading F2G A double-walled sectional metal flue is provided with terminal spacers 14 only at one end of each section and spigot-and-socket joints are secured by a split sleeve 18 tightened around the outer joint by a two-part clamp (19, Fig. 1, not shown). Beads 20 on the sleeve 19 engage grooves (17) on the outer pipes 12. The annular space 9 between the pipes 11 and 12 is closed, at the base of the flue, by a base member (30) and at the top by a cowl (Fig. 5, not shown).
Patent GB-907010-A (GB)
Title: Piezoelectric resonators
IPC: H03H9/13
Filed: 1959-12-04
Abstract: 907,010. Piezo-electric devices. UNITED STATES OF AMERICA, SECRETARY OF THE ARMY. Dec. 4, 1959 [Dec. 4, 1958], No. 41360/59. Class 40 (8). A piezo-electric resonator for use as a filter is arranged to operate at an overtone of its fundamental resonant frequency and comprises a disc 1 of piezo-electric material such as barium titanate with or without other titanates, an inner dot electrode 3, 3<SP>1</SP> of silver or platinum at a corresponding position of maximum mechanical stress on each main face, an outer ring electrode 2, 2<SP>1</SP> of silver or platinum interconnected with, surrounding but spaced from the inner electrode at a corresponding position of maximum mechanical stress on each main face, the piezoelectric material being polarized between the inner electrodes in a direction extending from one inner electrode to the other, and being polarized between the outer electrodes in the opposite direction, and means for exciting the inner electrodes, and the outer electrodes in phase with one another. The excitation voltage signal is applied to the input junctions 8 and 9 to the electrodes 3 and 3<SP>1</SP>. The disc can be arranged to resonate at its nth overtone and there can be provided (n-1) further outer ring electrodes at corresponding positions on each main face of the disc and means for connecting on each main face the inner dot electrode to all of the outer electrodes, the outer electrodes being located at positions of maximum mechanical stress and the polarization in the disc between corresponding pairs of electrodes alternating in polarity from the dot pair of inner electrodes to the outermost pair of ring electrodes. The means interconnecting the electrodes on each face can be linear conductors 4, 5 perpendicular to each other to avoid spurious responses. The electrodes and the connectors can be stamped in a single operation.
Patent GB-1072038-A (GB)
Title: A method of processing egg material
Inventor: PERRY CLIFFORD ARTHUR
IPC: A23B5/03
Filed: 1964-10-09
Abstract: Dried egg is obtained by concentrating egg material by the film evaporation process according to the main invention, and submitting the concentrated material to accelerated freeze drying or spray drying.  The egg material may be egg white, egg yolk or whole egg. With freeze drying egg white is concentrated before drying to at least 25%, egg yolk to at least 60%, or whole egg to at least 30% by weight solids, with spray drying the equivalent concentrations are 20%, 55% and 30% respectively, and preferably 50%, 70% and 70%.  With spray drying the inlet temperature is 90 DEG  to 100 DEG C and the outlet temperature 40 DEG  to 50 DEG C.  Freeze drying may be carried out by placing a tray containing the concentrate, or a rod coated with frozen concentrate, in an accelerated freeze drier under reduced pressure.
Patent GB-1163413-A (GB)
Title: Improvements in liquid seals or waste traps
IPC: E03C1/284
Filed: 1966-09-16
Abstract: 1,163,413. Waste traps. INDUSTRIAL PRODUCTS PTY. Ltd. 16 Sept., 1966 [20 Sept., 1965], No. 41372/66. Heading E1C. A plastics waste trap comprises an inlet section 21, 23, 27 connected to an outlet section 30, 33 by a spigot and socket joint 28, 31 which is retained in engagement by a tapering annular protrusion 29 in the spigot engaging a corresponding groove in the socket. The joint is sealed by a resilient ring in a groove 34 and the inlet and outlet sections are relatively rotatable. The outlet end has a series of stepped sockets to receive different sizes of pipe. The inlet end is secured by a captive nut 22. In a modification for a P-type trap, the outlet end is also secured by a captive nut.
Patent GB-907170-A (GB)
Title: Trousers and skirt hangers
Inventor: DUSEN LAURENCE WILLIAM VAN
IPC: A47G25/48
Filed: 1960-12-02
Abstract: 907,170. Trouser &c. hangers. MISSION INDUSTRIES. Dec. 2, 1960, No. 41494/60. Class 52 [5). A hanger for trousers, skirts, &c. comprises a suspension hook 45, handles 40 and clamping arms 10, 11, the arms being spring-urged about a fulcrum, at one end of the arms, to clamp the garment, opened by squeezing the handles together, and being movable at the fulcrum so that the arms remain parallel when the garment is therebetween. The hook and handles are bent up from wire, extensions 20, 21 of the wire being received in bores in the wood or plastic arms and passing through a block 30 which forms the fulcrum and has a bore 31 in which the extension 21 is secured by a pin 33 and a slot 32 in which the extension 20 is movable laterally. In a modification, shown in Figs. 7, 9, 10 and 12, moulded plastic arms 10a, 11a have flat, serrated gripping surfaces 50, 51 (Fig. 12) and rearward extensions 56, 57 forming handles. The spring is a doubled length of wire 22a bent to form the suspension hook 45a and legs 20a, 21a which are distorted by insertion in slots 70, 70a in the arms to urge the arms into clamping relationship round a fulcrum formed by a bead 65 and groove 66, the ends 81, 82 of the wire urging the arms inwards and the bends 35a, 36a on the opposite side of the fulcrum, urging the handles outwards. Interleaving webs 59, 61 projecting from the handles (Fig. 10), maintain the arms coplanar when the bead 65 and groove 66 are disengaged in the movement of the arms to a parallel, clamping position. In a further modification, the bends 35a, 36a contact the arms on the same side of the fulcrum as the ends 81, 82.
Patent GB-1125391-A (GB)
Title: Improvements in or relating to applanation tonometers
IPC: A61B3/16
Filed: 1965-09-30
Abstract: 1,125,391. Tonometers. J. D. MOLLER OPTISCHE WERKE G.m.b.H. 30 Sept., 1965 [16 Sept., 1965], No. 41535/65. Heading ASK. [Also in Division G2] An applanation tonometer comprises a counter-balanced, transparent pressure member 11 applicable to the cornea of an eye, means for exerting a force on ithe member 11 via a swivel arm 25 to one end of which the member 11 is attached, a light source 13 for illuminating the applanation surface of the member 11 and a measuring scale 35 which indicates the force exerted on the eye, together with a microscope for observing the eye through the member 11. The casing of the tonometer is substantially U-shaped, the swivel arm 25 being mounted in one arm 14 while the other arm 15 houses a screw-threaded rod 34 which is driven by a motor 37 through a gear-wheel nut 36. The scale 35 is mounted on the end of the rod 34, the movement of the rod varying the pressure exerted on the member 11 through a link 33, a pivotally mounted lever 32 and a tension spring 30 which join the rod 34 and swivel arm 25. The microscope comprises a front lens 40, two objective halves 41, 42, a reticle 44 and an eyepiece 43. The optical axes of the objective halves are offset from each other, so as to provide two displaced semi-circular images of the flattened cornea. Pressure is applied to the member 11 until the adjacent ends of the semi-circular images of the cornea appear to coincide. The force exerted may be seen through the eyepiece from the scale 35 which is projected by the light 13 onto the reticle 44. In order to hold the apparatus steady when in use, a plate 55 is adapted to contact the patient's forehead.
Patent GB-972177-A (GB)
Title: Improvements in and relating to multiply paper sacks
Inventor: OWENS WILLIAM VINCENT
IPC: B65D30/24
Filed: 1962-11-05
Abstract: 972,177. Bags with opening devices. PAPER SACKS Ltd. Sept. 13, 1963 [Nov. 5, 1962], No. 41679/62. Addition to 857,463. Heading B8K. A tab 2 (Fig. 1) for tearing open the blockbottom of a multi-ply bag, as in the parent Specification, is secured to at least one ply of the bag so as to extend longitudinally from one end of the bag to the other. In the form illustrated, the tab consists of a length of paper 2 folded to form a tube and pasted to the inner ply which has a tab 1. The plies may be cut flush, as illustrated, or may be staggered as in the parent Specification. The strip 2 may be of reinforced paper, card, plastic, cloth or string.
Patent GB-927565-A (GB)
Title: Improved automatic control system for clothes drying apparatus
Inventor: SLATTER JOHN REGINALD
IPC: D06F58/30
Filed: 1960-12-05
Abstract: 927,565. Tumbler driers; control systems. BRITISH THERMOSTAT CO. Ltd. Feb. 28, 1962 [Dec. 5, 1960], No. 41744/60. Class 34 (2). A tumbler drier has an automatic control system comprising a first thermally-operable device responsive to the temperature of the exhausted air arranged to switch off the heater at the end of a first period of time and a second thermallyoperable device indirectly responsive to the temperature of the heater arranged to switch off the motor driving the drum and fan at the end of a further period of time, heat storage means being provided to delay the operation of the second device during the second period by retarding the rate of temperature decrease influencing the second device consequent upon the switching off of the heater. A tumbler drier control system comprises a knob 1 which includes a first thermally-operable device (not shown), e.g. a thermostatic switch, which knob on rotation closes a switch 8 to supply one pole of a two-pole supply of current to one side of a heating element 10 and a motor 11 driving the fan and drum of the drier, and further rotation causes a second switch 12 to connect a further heating element 14 in parallel with element 10. Pushing the knob closes the contacts 4 of the device in the other pole of the current to initiate operation of the motor and element(s) 10, 11. The switch contacts 4 are opened and the heating element(s) de-energized when the temperature of the exhausted air reaches a predetermined limit as sensed by a phial 7 and operated through a capillary tube 6 and bellows 5. The consequent cooling of the element 10 is sensed by a phial 21 connected by a capillary tube 23 to the bellows of a second thermally-operable device. The contacts 24 of the second device are normally closed to connect the motor 11 in parallel with the heating element(s) and in series with the first device but when the element 10 reaches a predetermined temperature the device changes over its contacts 24 to connect the motor to the supply independently of and in parallel with the contacts 4 of the first device. Consequent cooling of the element 10 does not quickly cause the contacts 24 to move to their original position because a heat sink or heat storage member (not shown) is associated with the phial 21, which storage member gains heat from the heating element 10 when it is energized and loses this heat comparatively slowly after the element has been deenergized. Specification 908,189 is referred to.
Patent GB-944876-A (GB)
Title: Improvements in or relating to pneumatic tyres
IPC: B60C9/20
Filed: 1959-12-10
Abstract: 944,876. Pneumatic tyres. DUNLOP RUBBER CO. Ltd., and H. J. LAWTON. Nov. 23, 1960 [Dec. 10, 1959], No. 41962/59. Heading B7C. A pneumatic tyre has a carcase of at least one ply of parallel cords having a cord angle of 70 degrees to 90 degrees to the mid-circumferential plane of the tyre, and breaker composed of two pairs of cross-laid parallel cord layers, the cords of one pair having a cord angle of 5 degrees to 20 degrees and the cords of the other pair having a cord angle of 46 degrees to 75 degrees.
Patent GB-1405202-A (GB)
Title: Motor vehicle periscope rear view devices
IPC: B60R1/10
Filed: 1973-09-06
Abstract: 1405202 Periscopes; prisms GENERAL MOTORS CORP 6 Sept 1973 [27 Sept 1972] 41969/73 Heading G2J A motor vehicle rear view periscope comprises a hollow obtuse angled isosceles triangular prism formed by a transparent plate 80, Fig. 7, and two equal reflective backed plates 82, 84, filled with a transparent liquid, rays from rear object 100 passing with refraction through plate 80 to be reflected from plate 82, suffer internal reflection at plate 80, reflection from plate 84 and to pass through plate 80 with refraction to an observer at 18. The prism is mounted in an opening in the vehicle roof rearwardly inclined to the vertical. The sides of the prism are closed by end-plates 52, Fig. 5, mating at 54 and sealed at 56 to the edges of the prism plates and containing openings closed by a cover 62 and diaphragm 66 secured by screws 74, the space therebetween being filled with e.g. low density urethane foam 64 acting as a spring, the diaphragm moving to accommodate thermal expansion and lateral shifting of the liquid mass. The prism is angularly adjustably supported by lateral bolts 68.
Patent GB-1002076-A (GB)
Title: Surgical extractor
IPC: A61B17/22
Filed: 1963-10-24
Abstract: 1,002,076. Removing gall stones. J. A. GLASSMAN. Oct. 24,1963 [June 25, 1963], No. 41996/63. Heading A5R. A device for removing obstructions in the common bile duct comprises at least one obstruction-entrapping element connected between the inner ends of two elongate flexible members, each element being formed by strips or strands secured together at two longitudinally spaced apart positions and normally spaced from one another intermediate said positions, the element being expanded or contracted by the application of force to the outer ends of the members. A silver or copper flexible probe 17 having at one end a blunt tip 21 is introduced into the common bile duct through an upper incision 14 and emerges from a lower incision 15 in the duodenum, both ends of the probe then projecting through the incisions. Stone-extracting devices are made of co-extensive spring wire strands which are bowed outwardly and secured together at intervals by clamp beads 26 to provide one or a series of cages 28. The ends of the strands may be braided together and are secured to connectors 19, 24, by one of which the device is attached to the probe 17 in place of the blunt tip 21. A trailing lead may be secured to the end of the device remote from the probe. Handles 18 and 30 (not shown) may be secured to the free ends of the probe and the trailing lead or to connectors at the ends of the stone-extracting device, when it has been pulled by retracting the probe into the bile duct with its ends projecting through the incisions. The cages are collapsed b> stretching, expanded, rotated and pulled in either direction to entrap the gall stones. An alternative stone-extracting device comprises a rubber or nylon tube or rod 34 in which cages 35, comprising circumferentially spaced strips 36, are formed at intervals and has connectors by which it is connected between the probe and the trailing lead. Several stone-extracting devices comprising cages and bristles may be connected end to end for manipulation in the common bile duct.
Patent GB-924025-A (GB)
Title: Toy slide projector
IPC: G03B21/26
Filed: 1961-11-24
Abstract: 924,025. Optical projectors. BROMO MINT CO. Nov. 24, 1961 [April 3, 1961], No. 42022/61. Class 97 (1). An optical projector comprises a moulded plastic body having a tubular battery chamber situated between a tubular projection chamber and a base, a telescopically mounted lens unit at one end of the projection chamber and an electric bulb at the other, a first conductor arranged for electrical engagement with one battery terminal and one bulb contact, and a second conductor arranged for electrical engagement with the other battery terminal and the other bulb contact. In the embodiment shown, the projector comprises a lens housing 91 slidable in a socket 28 of the projection chamber 12 which is also provided with a slide holder 24 and an electric lamp bulb 20 surrounded by a conical mirror 46 for illuminating the slides. The bulb 20 is connected by two Z-shaped conductors 35, 67 to the two contacts of a battery 37 placed in a housing 13. The end 72 of the conductor 67 is moved into or out of contact with terminal 73 of the bulb by means of a switch 18 pivoted at 80. The battery and the bulb may be changed by removing the caps 63, 64 and 55.
Patent GB-1384137-A (GB)
Title: Cover for a car roof
IPC: B60R13/08
Filed: 1972-09-11
Abstract: 1384137 Laminated adhesive sheeting OYLER & CO Ltd 12 Sept 1973 [11 Sept 1972] 42076/72 Heading B5N [Also in Division B7] Decorative or protective covers for lining car roofs comprise a covering sheet which is formed from separate portions seamed together and which bears a contact adhesive coating covered by a removable backing sheet which comprises separate or readily separable parts. The cover sheet may be an embossed PVC-coated woven scrim or knitted fabric leather cloth or an unsupported plastics sheet and may be foambacked. The backing sheet may be waxed paper and the said parts may be a series of strips. The sheet may be shaped to conform to a car roof by seaming a central sheet to two side sheets by stitching the' central and side sheets together with their top surfaces adjacent, removing backing sheet portions on the side sheets adjacent the stitched edges, and folding the side sheets over.
Patent GB-1284278-A (GB)
Title: A two channel stereophonic amplifier
IPC: H03F3/68
Filed: 1969-08-22
Abstract: 1284278 Stereophonic amplifiers SERVO SOUND SA 22 Aug 1969 [23 Aug 1968] 42088/69 Heading H4R A stereophonic amplifier has a mixing device which equalizes the signals in each channel at low frequencies. The mixing device comprises two low pass filters, including resistors 14 ... 19 and capacitors 20 ... 23, which couple the respective channel inputs to the other channel outputs, and resistive attenuators, 12 and 13, which are connected each in series in the respective channel and have attenuations equal to the residual attenuation of the low pass filters in the low frequency band. The following amplifiers 3 and 4 are arranged to have input impedances high relative the attenuator resistances.