baber/WOPTO huggingface dataset:
Patent GB-1374559-A (GB)
Title: Balers
IPC: A01F15/10
Filed: 1973-08-15
Abstract: 1374559 Crop balers SPERRY RAND CORP 15 Aug 1973 [1 Sept 1972] 39573/73 Addition to 1374194 Heading B5F The baler described in Specification 1,374,194 is modified in that the channel 26 which supports roller assemblies 28 of the feed finger support 16 and is driven by crank 30 comprises a first member of an inverted U-shaped cross-section and second and third members secured to side walls of the first member and extending inwardly to form a lower bearing surface. The side walls of the first member may each have a vertical upper portion and an inwardly inclined lower portion to which the second and third members are adjustably secured. In another modification the top wall of the channel 26 has spaced diamond shaped apertures.
Patent GB-1107983-A (GB)
Title: Improvements in or relating to load supporting platforms or forks for industrial trucks
IPC: B66F9/12
Filed: 1963-10-08
Abstract: 1,107,983. Load supports for masted lift trucks. R. J. CRANSTON and A. E. C. EVANS. 5 Oct., 1964 [8 Oct., 1963], No. 39689/63. Heading B8H. The outer ends of the load-supporting tines 11 of a fork lift truck-are provided with pivoted toe-pieces 14 which are adapted to raise a load to assist the movement of the tines under the load. Each toe-piece 14 is pivoted at 12 to a rod 13, which is slidable in a slot 15 in the tine 11, and rests on a pin 18 mounted on the tine. In operation, the truck is run forward until the outer ends of the toe-pieces 14 move under the edge of the load and as the truck continues to move forward the weight of the load prevents forward movement of the toe-pieces and the rods 13 are moved into the slots 15 against the action of compression springs 17. During this inward movement of the rods 13, the pins 18 cause the outer ends of the toe-pieces 14 to be raised to raise the edge of the load to the level of the upper surface of the tines 11. A load-supporting endless belt 21 extends between the tines 11 and is supported by rollers 23, 24. An endless belt 25 is supported on rollers 26 between the tines with its upper run in frictional engagement with the lower run of the belt 21 and with its lower run in frictional engagement with the ground when the tines 11 are in their lowermost position. When the truck is moved forward, the upper run of the belt 21 is moved rearwardly, relative to the tines 11, by the belt 25 at the same speed as that of the truck, whereby, when the forward portion of the upper run of the belt 21 engages the edge of the load which has been raised by the toe-pieces 14, the load is in effect pulled on to the tines 11. Rollers may be provided on the upper surfaces of the toe-pieces 14, and the toe-pieces may be raised hydraulically.
Patent GB-1471619-A (GB)
Title: Attachment for grinding machines
IPC: B24B49/00
Filed: 1975-08-12
Abstract: 1471619 Grinding JOHN COOPER & SON Ltd 12 Aug 1975 [12 Sept 1974] 39756/74 Heading B3D A sizing attachment for a grinding machine comprises a body member 8 adapted to be attached to a grinding table 6 and carrying a projecting diamond grinding wheel dressing attachment 9 adjustable with respect to the table, a transducer mounted in the body member and associated with the dressing attachment, and control circuitry to receive a signal from the transducer to give an output signal to a visual device and/or an audible device and/or to switch off the grinding machine. The table 6 of the machine is reciprocated in the direction of the arrows 7 beneath a grinding wheel 2 and holds, for example, by a magnetic chuck, a plurality of workpieces 5. The table also carries the body member 8 carrying the diamond 9 and housing the transducer, a screw device being provided for adjusting the diamond relative to the table to a distance corresponding to the desired finished thickness of the workpieces. The transducer is vibrated when engaged by the grinding wheel to actuate the control circuit and having the visual and/or audible device and/or switch off the machine. The attachment 9 is not ground away by contact with the wheel and therefore does not require resetting, and also automatically compensates for wear of the grinding wheel.
Patent GB-1272830-A (GB)
Title: Improvements in or relating to telecommunications exchange systems
IPC: H04M11/00
Filed: 1969-08-08
Abstract: 1,272,830. Party line systems. SIEMENS A.G. 8 Aug., 1969 [9 Aug., 1968; 21 Feb., 1969 (4)], No. 39776/69. Heading H4K. In a telephone exchange system in which two (or more) subscribers share a common subscribers line, one subscriber station employs the line as a direct voice frequency link and the other employs different carrier frequencies for each direction with double side-band transmission on each carrier. At each end of the line a common unit demodulates the signals to provide normal working as for separate lines. The arrangement allows conventional substation equipment to be employed and allows for simultaneous use of the substations connected to the line. In one embodiment in which two subscribers employ a common line pair the first subscriber employs the speech frequency band K1 and the other subscriber employs double side-band transmission in a band K2 for transmission from the exchange and similar transmission in a band K2<SP>1</SP> to the exchange. A 25 c/s tone is transmitted from the exchange to ring either subscriber and the polarity of the D.C. supply from the exchange is used to indicate the subscriber being called, the polarity being alternated to ring both subscribers at the same time. The first subscriber has an oscillator which transmits a 4 kc/s tone on the line when that subscriber is off-hook and this tone is keyed on and off in response to dial pulses. At the exchange end of the line a tuned circuit responds making and breaking a contact in the line to the exchange. For the second subscriber the carrier frequency is used in similar manner. A 16 kc/s tone is transmitted from the exchange end to provide metering signals. In another embodiment the exchange to subscriber carrier frequency is used to call the second subscriber and metering signals for that subscriber are transmitted as an upper side-band modulation of that carrier. In this form further subscribers employing additional carrier frequencies may be included. The common unit at the subscribers end employs Zener diode voltage regulators, a transistor current regulator and various transistor switches which are described in detail.
Patent GB-973795-A (GB)
Title: Ball joint assemblies
IPC: F16C11/06
Filed: 1963-10-10
Abstract: 973,795. Ball joints. GENERAL MOTORS CORPORATION. Oct. 10, 1963 [Oct. 22, 1962], No. 39964/63. Heading E2F. A ball joint comprises a socket 11 with a lubricant supply fitting 30, the shank 17 of the ball 16 passing through an aperture 18 and being attached to the structural member 20, an annular dirt-shielding resilient boot 31 having one end sealed to the socket and the other slidably engaging the annular plastics valve 40 which surrounds part of the shank 17 and engages member 20 and has passages at its inner surface for the escape of lubricant terminating short of the sealing edge 45 which is resiliently displaceable. The passages are of L-shape comprising portions 43 and 44. The end 34 of the boot 31 has a reinforcing ring 35 and the serrated inner surface 36 and conically tapered surface 37 are biased against the valve. The axial portion 41 of the valve is press-fitted to the shank 17. In a modification an annular groove in the flange portion 42 connects the ends of the L-shaped passages. A low-friction plastics bearing 24, 25 is provided.
Patent GB-859129-A (GB)
Title: Improvements relating to means for securing elastic webs to frame members as for example in resilient upholstery
IPC: A47C23/24
Filed: 1957-12-23
Abstract: 859,129. Resilient seating surfaces &c. VARKALA, P. B. Dec. 10, 1958 [Dec. 23, 1957], No. 39967/57. Class 52(4) [Also in Group XXV] In a resilient foundation for seats &c. lengths 15 of elastic webbing are secured to tubular frame members by means of spring steel clips 17 of C-shape cross-section having slots 1, 2 through which the webbing is threaded so that the end of the webbing lies between the clip and the frame member 12 when embraced by the clip which may have spikes 9 to increase the frictional grip. In a modification the clip has only one slot and in a further modification, Fig. 8, cuts extending from the side edges distribute the friction grip.
Patent GB-1208087-A (GB)
Title: Container lifting stanchion
Inventor: TANTLINGER KEITH WALTON
IPC: B65G63/06
Filed: 1969-08-13
Abstract: 1,208,087. Container traffic container lifting stanchion; hoists. FRUEHAUF CORP. 13 Aug., 1969, No. 40403/69. Headings B8H and B8Q. A stanchion 11 which may be self-supported or secured to a building around an entrance has a frame 23 having pins 36 to enter the forwardly presented holes of the container bottom corner fittings and pins 45 mounted on vertically adjustable collars 37 to enter the upwardly presented holes in the container top comer fittings. The frame 23 in engagement with a container may be raised or lowered by a cable 26 actuated by a winch 31 to raise or lower the container to load or unload a vehicle placed under the container. If the frame is raised while engaged with a container secured on a vehicle the stanchion is raised allowing the vehicle to transport it to another position. The winch and rope may be replaced by a ram acting directly on the frame 23.
Patent GB-1157289-A (GB)
Title: Electric Pressure Relay
IPC: G05D9/04
Filed: 1966-09-09
Abstract: 1,157,289. Automatic liquid level control. STENBERG-FLYGT AB and S. B. F. CARLSTEDT. Sept. 9, 1966, No.40412/66. Heading G3R. [Also in Division H1] A pressure control switch, e. g. for controlling the water level in an underground drainage well has a diaphragm 34 forming one wall of a pressure chamber 36 connected to the well (10, Fig. 1), and a variable leaf-spring 58 acting on the external side of the diaphragm, i. e. the side exposed to atmospheric pressure, through a pin 54 carried by a disc 4. Initially, the water level (26, Fig.1) in the well and the pressure in chamber 36 are minimum (just above atmospheric pressure), and the diaphragm assumes the position shown in Fig. 3. Contacts 68, 70, in circuit with a thermal overload circuit breaker 64 and a pump (12, Fig. 1), are open. As the water level rises and reaches a selected maximum (22, Fig. 1), the pressure in chamber 36 on the diaphragm is increased and is now sufficient to overcome the opposing pressure due to spring 58. Diaphragm 34 flexes upwardly till it engages at least one fixed annular projection 40, thus reducing the free area of the diaphragm, and moves disc 44 with it till a shoulder 48 thereon engages a fixed shoulder 50 (see Fig. 4). During this upward movement, the pressure due to spring 58 gradually decreases. As disc 44 moves upwardly, it closes contacts 68, 70 and the pump (12) starts to operate and remove water from the well. The pressure in chamber 36 predominates till the minimum level (26) in the well is again reached. The pressure due to spring 58 will then predominate and move disc 44 and diaphragm 34 instantly downwardly to the position of Fig. 3, so that contacts 68, 70 open and the pump stops. The maximum and minimum operating pressures (22, 26) are selected by adjusting spring 58 by a knob 60. When disc 44 moves upwardly, it also closes contacts 74, 72 in an alarm circuit. A push-button 76 on depressing actuates a reset button 86 or the circuit-breaker 64 and then closes contacts 68, 70 via a peg 92. Diaphragm 34 is made of fabric reinforced plastics, e.g. Registered Trade Mark "Teflon", or rubber, and is inextensible in its own plane. A sealing rubber diaphragm 35 is provided.
Patent GB-1119452-A (GB)
Title: Extendable cot
Inventor: SHAW JOHN LEATHLEY
IPC: A47D7/00
Filed: 1964-10-05
Abstract: 1,119,452. Cots convertible into beds. PRICE BROS. & CO. Ltd. 24 June, 1965 [5 Oct., 1964], No. 40604/64. Heading A4J. 1,119,452. An article of furniture has a first member 1 providing a main surface for sleeping on and a second member 9 slidable with respect to member 1 between a withdrawn position in which member 9 provides a longitudinal extension of the main surface and a retracted position in which the extension surface is within the first member 1. Members 1, 9 are slidable relative to each other by means of a tongue and groove arrangement. End walls 14 are provided on members 1, 9. Studs 16 on the walls 14 support side frames 17, 18. Frame 17 is adjustable in height. A main mattress 12 and two auxiliary mattresses 13, 13<SP>1</SP> are provided.
Patent GB-1139222-A (GB)
Title: Improvements in alarm control mechanisms
IPC: G04C21/18
Filed: 1966-09-12
Abstract: 1,139,222. Alarm clocks. GENERAL ELECTRIC CO. Sept. 12, 1966 [Oct.18, 1965] , No. 40614/66. Heading G3T. An alarm clock control mechanism comprises a rotatable alarm time set gear 28, the position of which is adjusted by a pinion 32 and a spindle 34, and a lever 48 frictionally connected to the gear 28, the lever having teeth 76 which engage a gear 78 so that the lever may be moved to one of several pre-selected positions in order to vary the position of the alarm time set gear 28. The gear 28 is attached to a shaft 46 and an alarm hand 36, whilst the lever 48 is connected to the gear 28 by a friction coupling comprising a clutch disc 62, a washer 60 and a conical spring 58. A projection 64 on the disc 62 projects through a slot 66 in a supporting plate 4 and enters a recess 68 in the lever 48. On rotating a knob 82, the lever 48 may be rotated into any one of five positions defined by a detent 74 engaging recesses 70, 70 a-d, the friction coupling causing a corresponding rotation of the gear 28. With the detent 74 in the recess 70, the spindle 34 may be rotated to set the alarm to operate at any time, the gear 28 slipping against the disc 62. At the alarm time, projections 30, 38 on the gear 28 and an hour hand gear 16 respectively engage, causing a control lever 26 to release a vibrator 20 which sounds the alarm by striking a portion 24 of a synchronous motor. If it is desired for the alarm to operate at some other time, e. g. half an hour or an hour before or after the time corresponding to the existing setting, the knob 82 is rotated so that the detent 74 engages the appropriate one of the recesses 70 a-d, the friction clutch arrangement rotating the gear 28 the necessary amount. The clock may be mounted on a radio receiver.
Patent GB-1029208-A (GB)
Title: X-ray apparatus
IPC: G03B42/02
Filed: 1963-10-17
Abstract: 1,029,208. X-ray apparatus. WESTING- HOUSE ELECTRIC CORPORATION. Oct. 17, 1963 [Nov. 26, 1962], No. 40991/63. Heading H5R. In X-ray apparatus, for observing internal organs which would otherwise be obscured by bones &c., the X-ray source 5 (Fig. 1) can be moved transversely with respect to the image produced on a film 7 or screen 8 above the X-ray table 1, and in such a way that the X-ray beam is always directed to the same spot on the film or screen. The X-ray source, a tube 5 having a cone 5a (Fig. 2) is mounted on the bottom 40 of the integral member 36, 40, 23, which is pivotally supported by pin-and-roller means 21 and 45. The pivot 21 can run along a slot 25 in a plate 22 which forms part of a cross-carriage 15 arranged to be movable sideways, and forward and backward, with respect to the patient table 1. The cross-carriage 15 supports the tower 10 which has a slot at the bottom along which the rear pivot 45 can travel. The tower 10 carries the film device 6, comprising a cassette 7 and a fluorescent screen 8. The device 6, has mounted at its rear, a plate 41, having rollers 43 between which the member 36 can move. In operation of the apparatus, the X-ray tube is moved sideways by means of a motor 28 which causes the nut 30, attached to the member 23, to move along the threaded shaft 29, thus tilting sideways the whole member 23, 40, 36 which carries with it the X-ray tube. At the same time, the pivots 21, 45 move in their respective slots and the plate 41 swings about its pivot 42 on the film device 6, the member 36 sliding down between the rollers 43. The angle of the member 36 is indicated on a transparent plate 50. The film device may be moved up and down the tower 10, guided by rollers 12, the plate 41 and member 36 keeping the X-ray source and the focus spot, on the film, aligned. Continuous fluorscopic examination may take place as the tube 5 moves sideways, producing a quasistereoscopic effect.
Patent GB-1018520-A (GB)
Title: Improvements in and relating to holders for display cards and like panels
Inventor: ELSON ARTHUR WILLIAM FREDERICK
IPC: G09F1/12
Filed: 1963-10-18
Abstract: 1,018,520. Label holders. A.M.S. (PRESSINGS) Ltd. Oct. 19, 1964 [Oct.18, 1963], No. 41171/63. Heading B8F.  A card holder comprises two parallel metal plates 10, 11 formed with flanges 12, 14 at the sides and base. At least the front plate has an opening leaving a relatively narrow border. The flanges 12, 14 are interfitted and welded, brased or otherwise permanently secured together. The rear plate may have a corresponding opening or be without openings or only provided with openings for securing means. A mounting stem may be provided and the completed holder may be polished or plated.
Patent GB-1344399-A (GB)
Title: Measuring the charge density of an insulating layer on a semi conductor substrate
IPC: G01R31/26
Filed: 1972-09-06
Abstract: 1344399 Measuring charge density INTERNATIONAL BUSINESS MACHINES CORP 6 Sept 1972 [24 Nov 1971] 41274/72 Heading G1U In order to measure the charge density in the passivation layer (such as quartz or thermal oxide) applied to a single monolithic semiconductor substrate, an FET 1, Fig 1, is formed at a test site on the substrate by diffusion of an annular drain which completely encircles a central source, the gate 2 of the FET is left floating, a potential 3 is applied between the drain and source of the FET so as to cause a current I s  to flow, a potential 4 is applied between the semiconductor substrate and the source and the potential 4 is adjusted to make the source-drain current I s  negligibly low, i.e. of the order of half a microampere. It is then possible, knowing the substrate permittivity and its doping concentration, to calculate the required charge density from the value of the potential 4 which produces substantially zero source-drain current. A circuit which automatically adjusts itself to this state is described Fig.2 (not shown).
Patent GB-1365113-A (GB)
Title: Preparation of vinylidene fluoride
IPC: C07C17/25
Filed: 1971-09-06
Abstract: 1365113 Vinylidene fluoride BAYER AG 6 Sept 1971 [8 Sept 1970] 41359/71 Heading C2C Vinylidene fluoride is prepared by pyrolysis of 1,1-difluoro-1-chloro ethane at 400-700 C. in the presence of water. The reactor may contain a catalyst or filler, for example nickel filings, copper filings, or Raschig rings of carborundum, quartz or graphite.
Patent GB-1444761-A (GB)
Title: Pulse operated electromagnetic surface motor
IPC: H02K37/00
Filed: 1973-09-04
Abstract: 1444761 Linear motors FUJITSU Ltd and FUJITSU FANUC Ltd 4 Sept 1973 [8 Sept 1972] 41408/73 Heading H2A A two-axis positioning device utilizing rows of teeth on a movable member, each row having the same tooth pitch, but displaced by a fraction of the tooth pitch from its neighbours, there being rows in the X- and Y-directions, has a stator comprising intersecting rows of teeth of magnetic material these rows also being in the X- and Y-directions. In the prior art, the stator is formed by etching cavities at U (2i-1) , U (2j-1)  in Fig. 3, i.e. the double hatched squares. This leaves the orthogonal rows, e.g. U i,4  in the Y-direction and U 4,j  in the X-direction. In the invention further cavities are added, shown as single hatched squares. These serve to increase the area of each etched portion to three times the previous area while only losing one tooth in every eight along any row. The increase in area is stated to improve the shape for the etched cavities by preventing roundness at the cavity edges, thereby improving the flux pattern and increasing the driving force for a given cavity depth. Specification 1,416,468 (Division H2) is referred to. Reference has been directed by the Comptroller to Specification 1,197,065.
Patent GB-1471018-A (GB)
Title: Electrostatic copying machines
IPC: G03G15/08
Filed: 1974-09-24
Abstract: 1471018 Electro-photography RANK ZEROX Ltd 24 Sept 1974 41466/74 Heading G2H  Replenishment of toner in an electrophotographic copier is regulated in accordance with the passage of copy material through a transfer station. Each copy sheet actuates a timer which causes a toner addition device to operate for a set period of time. Manual over-ride means are provided to cause toner to be added, if desired, without passage of a copy sheet.
Patent GB-912223-A (GB)
Title: Snap action electric switch
IPC: H01H21/28
Filed: 1958-12-23
Abstract: 912,223. Retractive switches. NATIONAL ACME CO. Dec. 23, 1958 [March 18, 1958], No. 41497/58. Class 38 (5). In a snap-action limit switch the operating machine member rotates lever 42 and hence coupled clutch members 17, 18 counter-clockwise to bring an operating cam 20 to the position shown. The cam-follower 108 thus moves slider 101 to the left, detent 103 striking a member 93 on a latched member 90 to compress the snap-spring 105. A release stud 109 on slider 101 then reaches the position shown in Fig. 7, where it trips spring-loaded latches 118 to release members 93 and allow the spring 105 to snap the slider 101 to the left. This carries with it the contact-carrier 81 so that spring- loaded contacts 83, 84 leave the right-hand contact pair 78 and engage the left-hand pair 78 with a snap-action. Upon release of the lever 42, cam-spring 36 returns the cam 20 to normal and spring 107 urges the slider 101 to the right. The contacts 83, 84 thus snap back under the control of latches 119. In order that the switch may be operated by a clockwise movement of lever 42 and cam 20, the clutch member 17 may be withdrawn from the member 18 and rotated through 90 degrees.
Patent GB-1139140-A (GB)
Title: Liquid dispensing apparatus
Inventor: CRIPPEN PETER
IPC: B67D1/10
Filed: 1966-09-16
Abstract: 1,139,140. Reciprocating pumps. DISTILLERS CO. (CARBON DIOXIDE) Ltd. Aug.25, 1967 [Sept. 16, 1966], No.41585/66. Heading F1A. Liquid, e.g. beer, is delivered under pressure from a tank 12 through a valve 14 to a diaphragm pump 1 from which it is discharged through valves 17, 19 to a nozzle 20 by air pressure applied to the pump diaphragm. The valve 14 includes an electric switch which is open when the valve is open and closed when the valve is closed and in circuit with solenoids controlling the valves 8, 19 so that the liquid may only be dispensed after the pump chamber has been charged. The stroke of the diaphragm may be varied by means of concentric and removable rings secured to one side of the diaphragm.