baber/WOPTO huggingface dataset:
Patent GB-779556-A (GB)
Title: Improvements in and relating to skid undercarriages for aircraft
Inventor: CAMPBELL THOMAS COCHRANE
IPC: B64C25/66
Filed: 1954-08-06
Abstract: 779,556. Aircraft undercarriages. ENGLISH ELECTRIC CO., Ltd. Aug. 5, 1955 [Aug. 6, 1954], No. 23000/54. Class 4. An undercarriage leg 1 is pivoted at 2 to the central portion 4 of an articulated skid, wherein the front and rear portions 3 and 5 respectively are mounted on part 4 by pivots 6, 7 for movement between the positions shown in the two figures by means of links 13, 14, bell-crank levers 8, 9 and a jack 11. A shock absorber 19 connects the rear end of portion 4 with a pivot 12 on leg 1. The portion 4 carries half-housings 21<SP>1</SP> and 22<SP>1</SP> and co-operating half-housings 21<SP>11</SP> and 22<SP>11</SP> are carried by portions 3 and 5 respectively to clamp pins 21 and 22 when the skid is in the extended position of Fig. 2. The pins are mounted in two parallel beams 30 forming a bogie frame which carries pivots 33, 34 for two arms 31, 32 supporting wheels 35, 36. The arms 31, 32 carry pivots 31<SP>1</SP>, 32<SP>1</SP> for attachement to jacks-37, 38 which are connected at a common pivot 30<SP>1</SP> on the bogie frame. In operation, the bogie is offered up from behind to the aircraft standing on the ground with the skid in its folded condition, the front wheels 35 and arms 31 being detached from the beam 30 by removal of pins 30<SP>1</SP> and 33. With the bogie in position, the wheels 35 and arms 31 are re-connected and the jack 11 is operated to move the portions 3, 5 down and cause the half housings 21<SP>1</SP>, 21<SP>11</SP> and 22<SP>1</SP> and 22<SP>11</SP> to be clamped on pins 21 and 22. A detachable handle 39 is then used to operate a pump (not shown) to extend jacks 37 and 38 and thereby raise the skids until the aircraft is supported by the bogie wheels. After take-off the pilot operates jack 11 to fold the portions 3, 5 whereby the bogie is released and drops to the ground. On touch-down a pilot parachute 50 and a main parachute 51 are released to shorten the run of the bogie.
Patent GB-728081-A (GB)
Title: Improvements in and relating to bowden mechanism
IPC: F16C1/14
Filed: 1952-09-12
Abstract: 728,081. Actuating Bowden mechanism. MELSON, W. A., and BOWDEN (ENGINEERS), Ltd. Sept. 11, 1953 [Sept. 12, 1952], No. 23001/52. Class 136(1). Bowden mechanism comprising inner and outer members A, B, has means, such as a ball 13 and plunger 10, which releasably co-operate with the inner member A and an outer helix 1 in such manner that adjustment of the mechanism may be achieved by either direct relative axial displacement between the inner member A and outer member B or by relative axial displacement in response to fine screw action. The helix shown is in the form of a coil extending between a fixed bush 2 and an adapter 3, and the ball is pressed into the internal helical groove of the coil by an inclined surface of the plunger 10, the latter being urged upwardly by a spring 16. The coil surrounds a rotatable tube 7 whose lower end receives a ball 5 at the end of member A and whose other end carries an actuating knob 8. For coarse adjustment the plunger 10 is pushed downwardly by a push button 15 to release the ball from the coil, whereupon the knob may be pulled away from the bush. The plunger may then be released, and subsequent fine adjustment by the action of the ball in the helical groove when the knob is rotated. Specification 442,138, [Group XXVIII], is referred to.
Patent GB-649868-A (GB)
Title: Means for controlling an adjustable amount of electrical energy
IPC: H02K49/00
Filed: 1948-09-01
Abstract: 649,868. Control systems for high-frequency apparatus. STIVIN, J. Sept. 1, 1948, No. 23018. Convention date, Sept. 5, 1947. Addition to 637,240. [Class 38 (iv)] [Also in Group XXXVI] The I<SP>2</SP>t load duration control device disclosed in the parent case is modified (1) to remove or reduce residual magnetism effects in the rotating electromagnetic system, (2) to provide for connecting the magnetizing or field coils in series or parallel by automatic or manual switching. In Figs. 1 and 2 a stationary ring 44 of magnetic material provides a closed path for flux generated by field coils 3 disposed about magnetic cores or pole-pieces 45 mounted on a non-magnetic support 46 coupled to the driving motor 5. In Figs. 5, 6 and 7 (not shown), the stationary ring 44 surrounds axially extending coils wound about non-magnetic cores. In Fig. 4 (not shown) a change-over switch, frictionally operated, connects the coils in series or parallel according to direction of rotation of the driving motor. Fig. 3 (not shown), illustrates the manual switching arrangement.
Patent GB-773466-A (GB)
Title: A pulse echo fault locator
IPC: G01R31/11
Filed: 1955-08-10
Abstract: 773,466. Pulse echo testing systems. HARTMAN & BRAUN AKT.-GES. Aug. 10, 1955 [Aug. 10, 1954], No. 23036/55. Class 40(7) A pulse echo test equipment for detecting faults in an electric transmission line includes a device for measuring the time taken for a pulse to reach a fault and return wherein a steady current is caused to flow through a suitable measuring instrument from the time of transmission of a pulse to the time of the return of the first echo pulse. The current is switched on and off by means of grid controlled thyratron valves. In the embodiment shown the transmitting circuit consists of a condenser C<SP>1</SP> which is charged from a D.C. source when spherical electrodes K<SP>1</SP> and K<SP>2</SP> are in contact. Movement of electrode K<SP>1</SP> over into contact with electrode K' against the action of spring F causes a pulse to be applied to line L the polarity of which is dependent on the position of reversing switch, u. Positive pulses are applied to the line to check for an open circuit fault and negative pulses to test for a short. In either case the arrangement. of the earth points, resistor R<SP>1</SP> and potentiometer a is such that the transmission to be applied to the indicator unit from the slider of potentiometer a and the appropriate echo pulse applies a positive impulse over he same line. Before operation none of the cathode coupled thyratron valves T<SP>1</SP>, T<SP>11</SP> or T<SP>111</SP> is conducting. The negative impulse corresponding to the transmission of a pulse does not affect T" but its application to differentiating circuit b causes a sufficient positive pulse to be applied to the grid of T<SP>1</SP> to initiate a discharge. Current then flows through ammeter D, ballistic galvanometer measuring instrument G, screened grid valve SR, thyratron T<SP>1</SP> and cathode resistor e. Arrival of an echo pulse has no effect on T<SP>1</SP> but causes T<SP>11</SP> to fire. Current through T<SP>11</SP> increases the potential drop across e sufficiently to cut off T<SP>1</SP> and terminate the current flow through the measuring instrument. T" itself is subsequently cut off by the termination of the discharge from capacitor f. The valve SR stabilises the current flow through the measuring instruments and its anode and screen grid potentials are chosen to suppress any slight residual discharge that may otherwise pass when the thyratron T<SP>1</SP> is nominally non- conductive. A compensating circuit g is connected across galvanometer G to prevent errors arising due to the time of growth and decay of current in the galvanometer coils. To protect the galvanometer against overloading it is provided with an elastic limit contact z which when closed initiates the firing of thyratron T<SP>111</SP> which terminates the current flow through T' in the same way at T<SP>11</SP>.
Patent GB-226266-A (GB)
Title: Improvements in or relating to lever operating means of bowden and like wire transmissions
IPC: B62M25/04
Filed: 1923-09-14
Abstract: 226,266. Webb & Co., Ltd., H. C., and Atkinson, G. L. Sept. 14, 1923. Control mechanism.-In the invented lever type of operating means for Bowden mechanism passing through cycle handle-bars &c., the hollow sleeve adapted to be secured within the handle-bar end is provided with an integral or detachable central abutment for the Bowden sheath or casing, such abutment being radially slotted to accommodate and permit lateral detachment of the Bowden cable and serving also as a direct stop or abutment for the cable-carrying end of the inverted lever pivoted to arms depending from the hollow sleeve. Several forms of detachable and integral abutment stops are described, detachable stops being shown in Figs. 1, 4, and 6, and an integral stop in Fig. 9. The hollow sleeve a carrying the lever d and secured within the handle-bar end b is formed with a conical bore a<1> terminating in a part accommodating the slotted stop c, which forms the abutment on one side for the Bowden casing and on the other side for the cable-carrying end of the inverted lever d, the stop c and lever-end d' being slatted to enable the cable to be inserted laterally. The stop may be screwed, Fig. 1, or secured by a bayonet-joint such as c<5>, Fig. 4, or by a spring collar d<5>, Fig. 6. In other forms a set screw passes through a flange in the stop c into the sleeve a, or through the sleeve a into an annular groove in the stop c. In the form in which the abutment is integral with the sleeve, the sleeve is shortened, Fig. 9, and may be secured by a band e compressing the split end of the handlebar b thereon, or alternatively the sleeve may be screwed into the handle-bar end or secured by a screw stud.
Patent GB-1429162-A (GB)
Title: Colour television camera apparatus
IPC: H04N9/69
Filed: 1974-05-23
Abstract: 1429162 Colour television SONY CORP 23 May 1974 [26 May 1973] 23096/74 Heading H4F The ratio between the luminance and chrominance signals derived from a one-tube colour telvision camera is maintained constant by increasing the gain of a chrominance signal amplifier 40 when the intensity of the illumination increases. Amplifier 40 may be controlled by the target voltage of the pick-up tube 2, or, as shown, by the luminance signal derived from a low-pass filter 11. The camera includes a colour filter 7 formed by two superimposed striped filters, one (71, Fig. 2, not shown) having alternate transparent and yellow stripes and the other (72), having alternate transparent and cyan stripes, the stripes of the filters being at equal and opposite angles to the line scanning direction of tube 2 so as to produce respective phase changes of (#/2) between successive line scans, red and blue signals being derived by adders 14, 13, one-line delay line 15 #/2 phase shifter 16 and -(#/2) phase shifter 17.
Patent GB-480536-A (GB)
Title: Improvements in and relating to steam superheaters
IPC: F22G7/14
Filed: 1936-08-22
Abstract: 480,536. Steam superheaters ; watertube steam boilers. SUPERHEATER CO., Ltd., and SOUTHCOTT, L. C. Aug. 22, 1936, No. 23134. [Classes 123 (ii) and 123 (iii)] In a looped-tube superheater having elements depending into the gas path of a watertube boiler, to relieve the joints between the elements 2 and their headers 7 of the weight of the elements, the inlet and outlet ends of the elements are provided with adjustable collars 11 which rest upon cross-bars 9 secured to the headers. A damper 14 in a baffle 13 in front of the superheater allows part of the furnace gas to flow directly to the outlet flue 15. In a modification, dampers are provided on both sides of the superheater, the upper fixed portion 18 of the baffle 13 being omitted.
Patent GB-1097128-A (GB)
Title: Improvements in retaining means
IPC: F16B2/24
Filed: 1966-05-24
Abstract: 1,097,128. Shaft couplings. ATLAS COPCO AKTIEBOLAG. May 24, 1966 [June 3, 1965], No. 23138/66. Heading F2U. The anvil 10 of an impact wrench has a polygonal, preferably square end 11 fitting in a socket wrench 12 and secured axially by a spring wire retainer 14 of hair-pin shape having its legs frictionally engaged in bores 18 at the tip of the square end, a middle portion 19 received in a groove in the end, and a locking hook 17 releasably co-operating with a radial bore 13 in the socket. In a modification the hook 17 is replaced by a hump in the portion 19. In another embodiment the retainer is a spring strip having a humped portion engaging the bore 13 and a transverse portion which is curved to frictionally engage a dove-tail groove provided in the end face of the square end 11.
Patent GB-996438-A (GB)
Title: Improvements in or relating to steering linkage ball joints of vehicles equipped with a hydropneumatic suspension system
IPC: F16C11/06
Filed: 1964-06-04
Abstract: 996,438. Steering ball joints. ANDRE CITROEN S.A. June 4, 1964 [June 10, 1963], No. 23151/64. Heading B7H. The space between a vehicle steering balljoint 4 and the seating 10 therefor is hydraulically connected through bore 12 and pipe 11 with hydropneumatic suspension unit 9, an 0-ring seal defining the edge of the space and being of such a diameter that the loads on the ball joint are " balanced."
Patent GB-756113-A (GB)
Title: A slot-milling attachment for use with boring and milling machines
IPC: B23C3/30
Filed: 1954-08-10
Abstract: 756,113. Milling. SCHIESS AKT..GES. Aug. 10, 1954 [Aug. 11, 1953], No. 23154/64. Class 83 (3). An attachment for a boring and milling machine comprises a disc milling cutter 9 to be driven by the spindle 4 in the machine head 16, and a formed milling cutter 10 mounted with its axis in the plane passing through the centre of the cutter 9. The attachment consists of an arm 1 carrying an outboard support 3 for the axially adjustable spindle 4 and a slide 2 carrying two dovetail cutters 10. The cutters 10 are rotated by a motor 13 and are adjusted axially by nuts 11. The machine column 14 is traversed along the work, e.g. a rotor 5 supported between a centre 6 and an axially-adjustable and indexable centre to cut a slot 17, 18, Fig. 3.
Patent GB-883655-A (GB)
Title: Improvements in or relating to arrangements for transferring information in electronic computing machines
IPC: G06F13/18
Filed: 1958-07-18
Abstract: 883,655. Digital data storage apparatus. COMPAGNIE DES MACHINES BULL. July 18, 1958 [July 31, 1957; Nov. 19, 1957], No. 23171/58. Class 106 (1). Transfer of information between a high-speed general store 1 (Fig. 1) and independent storage elements 2, 3, 4 &c. (such as magnetic drums or tapes, or read-in or read-out devices) which may operate at different speeds, takes place according to a predetermined order of priority of the elements 2, 3, 4 dependent on their relative speeds. Figs. 5 and 6 show an arrangement of flip-flops E, b, P; " and " gates c, d; " or " gates m; and double-output amplifiers D, A; enabling the selection of the element of highest priority out of those of a set of 64 which have set their corresponding flip-flops Ek by a " transfer demand " signal Sk (the lowest number K corresponding to the highest priority). The system delivers on lines a 0 -a 7 , the highest priority " K " number so registered in a twodigit serial octonary code at clock pulses t 1  and t 2  of each minor cycle of four pulses t 0 -t 3 , and re-sets the corresponding flip-flop E ; the number is converted to a parallel binary number for the information transfer control by the coding device of Fig. 8 (not shown). The operation of Figs. 5 and 6 at each minor cycle pulse is as follows:-(t 0 ). Each "set" " Ek (registering " transfer demand ") sets the corresponding bk, the output of which is connected to the two amplifiers D, D<SP>1</SP> corresponding to the two octonary digits of K in the manner shown for D 4 , D<SP>1</SP> 4 , so that the flip-flop P corresponding to its first (most significant) digit is set; " and " gates C 8 -C 14  act to select the lowest such first digit. (t 1 ). The a outputs are each connected to eight g<SP>1</SP>k inputs (Fig. 6) (those having a corresponding first digit of k) and hence reset all bk's with a first digit other than the lowest selected at t o . The amplifiers D<SP>1</SP> corresponding to the last digits of the remaining bk's set their P's through gates C<SP>11</SP> (if not already set at t o ), and each other D<SP>1</SP> resets its corresponding P through C<SP>111</SP>; the gates C 8 -C 14  select the lowest of'these second digits (t 2 ). The a outputs (each connected also to the eight g<SP>11</SP>k inputs having a corresponding second digit of K) reset all bk's with a second digit other than the lowest selected (leaving only the lowest bk set; this bk re-sets its Ek). (t 3 ). The lowest bk is re-set (see Fig. 6). After this minor cycle, unless the re-set (lowest) Ek has been set again by a new transfer demand, the next minor cycle will select the next lowest K for store-to-store transfer.
Patent GB-1065047-A (GB)
Title: Improvements in or relating to gutters
IPC: E04D13/068
Filed: 1965-06-01
Abstract: 1,065,047. Gutter brackets. WAVIN PIPES Ltd. June 1, 1965 [Aug. 4, 1964], No. 23197/65. Heading A4B. [Also in Division E1] A gutter bracket comprises inwardly extending flanges 4 having downwardly turned free edges 4a and an integrally formed web 6 secured to or integral with a mounting plate 7.
Patent GB-650350-A (GB)
Title: Improvements in or relating to gas burners
IPC: F23D14/06
Filed: 1948-09-03
Abstract: 650,350. Gas burners. PARKINSON STOVE CO., Ltd., and HOLLOWAY, D. M. Sept. 3, 1949, No. 23200. '[Class 75(i)] In a burner comprising a ring of outwardly directed jets h mounted on an annular chamber a .supplied with non-aerated gas, air passes upwardly through the central passage b formed by the annular chamber.and is deflected outwardly to the jets by a spreader k mounted above the central passage b. The spreader k is in the form of a circular disc having radial fins m and a vertical stem l. The fins m rest on the top of the annular chamber a and extend into the central passage b. The stem l is disposed axially within the passage b and merges into the spreader disc in a curve complementary to the flared mouth of the central passage b. The chamber a is formed in a casting closed by a screw threaded flanged ring g and has an inclined upper wall into which the jets h are screwed; a boss f on the casting serves to connect a gas pipe d. The burner is mounted in the centre of a ribbed vessel support n with the spreader k slightly below the level of the ribs of the support.
Patent GB-337385-A (GB)
Title: Improvements in or relating to cutting-blocks
IPC: C14B5/00
Filed: 1929-07-29
Abstract: 337,385. British United Shoe Machinery Co., Ltd., and Barnett, H. July 29, 1929. Cutting-out apparatus.-Blocks for use as beds in machines for cutting out leather &c. of the type in which a series of sheets such as fibre board are glued and clamped together, their edges forming the cutting surface, are rendered less liable to break up by uniting the boards with rubber latex or other suitable material in order to form, when dry, an elastic band between the boards. Specifications 22023/05 and 27833/09 are referred to.
Patent GB-532009-A (GB)
Title: Improvements in and relating to resinous compounds
IPC: C08G16/02
Filed: 1939-08-11
Abstract: 532,009. Synthetic resins. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 11, 1939, No. 23235. Convention date, Aug. 13, 1938. [Class 2 (iii)] Resins are obtained by condensing formaldehyde or compounds liberating formaldehyde with organic compounds of the formula (where X is -R or-O-R, R being a hydrocarbon radical) with subsequent or simultaneous polymerization of the condensate. The reaction conditions may be acid or alkaline, e.g. sodium hydroxide or carbonate, or morpholine may be present. There may also be present polymerization inhibitors, e.g. hydroquinone, or dehydration agents, e.g. zinc chloride or phosphoric acid. In examples: (1) acetyl acetone, formalin solution and caustic soda are refluxed, two phases being obtained on cooling ; water is removed by distillation or by dehydration at 70‹C., followed by heating at 160‹C. ; (2), (3) ethylacetoacetate, formalin, and morpholine or caustic soda are reacted as in example (1); (4) ethyl acetoacetate, formalin, and caustic soda are mixed and allowed to stand, more formalin added, and after further standing, the water distilled off ; (5) dimethyl malonate, formalin, and caustic soda were mixed and water removed by distillation or evaporation ; (7) diethyl malonate, formalin, and morpholine are allowed to stand and then distilled, the first fractions being rejected, and the subsequent fractions being polymerized with or without light and polymerization catalysts, e.g. peroxides, any lower polymers may be extracted, e.g. with ethyl alcohol, and de-polymerized or further polymerized ; a non-distillable resinous residue is obtained. According to the Specification as open to inspection under Sect. 91, resins are obtained by polymerizing "ethylene derivatives in which two double bonded carbon atoms are attached to the beta carbon atom." The derivatives are formulated where X is -R or -OR, R being an organic grouping. X may be alkyl, e.g. -CH 3 , -C 2 H 5  ; aryl, e.g. -C 6 H 5 , -C 6 H 4 ÀCH 3  ; alkaryl, e.g. -CH 2 C 6 H 5  ; alkoxy, e.g. -OÀC 2 H 5 , -OÀCH 2 . CH 2 ÀO-, -OÀCH 2 ÀCH 2 OH ; aryloxy, e.g. - OÀC 6 H 5 , -OÀC 6 H 4 ÀCH 3 , -OÀCH 2 ÀC 6 H 5  ; or radicles disclosed in Specification 519,349. The double bonds shown free may be attached to =O, =S, or =NH. Specified derivations are methylene ethyl acetoacetate methylene acetyl acetone methylene diethyl malonate The derivatives may be prepared by condensations of the type described above. Reference is also made to the formation as bye-products of methylene bis malonic esters, e.g. which may be used as plasticizers or converted to acids and reacted with polyhydric alcohols to form resins. This subject-matter does not appear in the Specification as accepted.
Patent GB-586661-A (GB)
Title: Surgical stitching instrument
IPC: A61B17/04
Filed: 1944-11-13
Abstract: 586,661. Hand sewing tools. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Nov. 13, 1944, No. 23271. [Class 112] A surgical stitching instrument having a construction generally similar to that disclosed in Specification 586,658 is capable of being provided with any one of a number of needlesupporting bars of various lengths and diameters. As shown, the mounting of the handle Ion the spool holding section 2, and the construction and arrangement of the spool, including the locking and unlocking mechanism, are generally similar to those disclosed in the Specification referred to. The tubular portion 5 carrying the needle bar 23, a small bar being shown in Fig. 1, is formed' with slots a-d any of which may engage a tongue 10 punched out of the shank of the bar. The outer end of the tubular portion 5 is slightly constricted so as resiliently to grip the needle bar which is formed with a tapered end 23c to facilitate insertion. The other end of the bar is formed with two aligned notches 25, and two aligned slots 29 in which is slidingly mounted a pin 30 fastened in the needle clamping rod 24. The needle n has an octagonal shank passing through an aperture in the rod, and is firmly gripped against notches 25 by tightening nut 27. As shown in Fig. 1, the screwed end engages threaded bore 27a. A heavier bar 123 and needle clamping rod 124 are shown in Fig. 6. In this construction, the screwed end in the handle engages bore 27b. Pin 130 is secured by solder 131, and a needle stop 132 is provided. In both construction, a thread guide 13 is provided. Different lengths of needle bar and clamping rod are available in each form.