baber/WOPTO huggingface dataset:
Patent GB-479635-A (GB)
Title: Cell for the treatment by fermentation of domestic manure
IPC: C05F17/02
Filed: 1937-02-09
Abstract: 479,635. Manures. EAU ET ASSAINISSEMENT ANCIENS ETABLISSEMENTS C. GIBAULT. Feb. 9, 1937, No. 3816. Convention date, Oct. 7, 1936. [Class 111] A cell for the treatment of domestic manure is open in a permanent manner at its upper part and the circulation of air through the mass of manure is effected from the top downwards by the suction of air from under a perforated base supporting the mass of manure. As shown, the cell 1 is open at the top 2 and is provided with a perforated base 9, upon which the manure rests, and a sloping floor 3. An air suction pipe 20 connects through a flow-meter 19 and a stop-cock 18 and a pipe 17 to the space under the floor 9. Water is supplied through a stop-cock 15 and flowmeter 16 to a perforated tube 12 and flows to the floor 3 which directs it through a siphon 4 into a collecting pipe 6. Each cell is provided with a thermometer and a manometer. According to a modification, the top 2 is closed by a cover having openings for the passage of the air on its periphery.
Patent GB-274744-A (GB)
Title: An improved damping or buffering device
IPC: B60R3/02
Filed: 1927-02-11
Abstract: 274,744. Bocuze, G. Feb. 11, 1927. Fluid-friction vibration-dampers.-In apparatus of the oscillating type a radial shutter B mounted on the spindle C oscillates in the cylindrical casing A, D and a fixed perforated radial partition E, E<1> is fitted with a slide F adjustable from the outside by a screw G so as to regulate the flow of fluid through the partition. A spring-controlled one-way valve N is also provided in the movable shutter B.
Patent GB-1291253-A (GB)
Title: Improvements in or relating to braid-reinforced pipe joints of the convoluted-belows type
Inventor: HUGHES ROBERT ALAN
IPC: F16L51/02
Filed: 1969-01-23
Abstract: 1291253 Pipe couplings PLESSEY CO Ltd 12 Jan 1970 [23 Jan 1969] 3912/69 Heading F2G  A flexible pipe joint, employing a convoluted bellows 3, has a braid sheath 4 attached to each end of the joint and drawn over a radially floating ring 5, of greater diameter than the bellows, approximately mid-way along the bellows. The braid 4, comprising woven helical metal strands, is held at its end points between tapered collars 14 and tapered surfaces of the end-pieces 11, 12 as described in Specification 1,091,013. The floating ring 5 has a U-shaped section, filtering over a guide plate 16 held in the bellows 3, and moves radially when the end-pieces 11, 12 are relatively inclined, decreasing tension in the outer side of the braid 4 and taking up slack in the inner side of the braid. Diametric vanes (17), (18), Fig. 4 (not shown), for transmitting axial thrust, may be fixed to respective end-pieces and are mutually at right angles, and mutually engaged by central tapered recesses allowing relative angular movement.
Patent GB-1096920-A (GB)
Title: Oxidation resistant hydraulic oil
Inventor: REILAND WILLIAM HENRY
IPC: C07D285/125
Filed: 1966-01-28
Abstract: Hydraulic fluids comprise a major amount of a mixed oil and (a) 0.1-2.0 wt. per cent of a hindered phenol of formula <FORM:1096920/C4-C5/1> where R and R1 are C1-C8 alkyl radicals, (b) 0.001-0.5 wt. per cent of an oil-soluble alkylated succinic anhydride of formula <FORM:1096920/C4-C5/2> where R is a C6-C20 alkyl radical and (c) 0.001-2.0 wt. per cent of an oil-soluble material selected from aromatic secondary amines, sulphurized terpenes and 1,3,4-thiadiazole polysulphides, e.g. those of formula <FORM:1096920/C4-C5/3> where R and R1 are hydrocarbon radicals, x and y are 0-8 and x+y is at least 1.  Many examples of each additive are given.
Patent GB-1514623-A (GB)
Title: Apron and drive mechanism for object transferring apparatus
IPC: A61G1/00
Filed: 1976-02-02
Abstract: 1514623 Reciprocating carriers MOBILIZER MEDICAL PRODUCTS Inc 2 Feb 1976 [17 March 1975] 03965/76 Heading B8A A conveyer comprises a plate 28 which is reciprocated relative to a chassis 10 between extended and retracted positions, a length of belt having upper and lower runs 34, 36 trained over the upper face, leading edge, and lower face of the plate 28 and having its ends connected to reels 38, 40, and means for reciprocating the plate 28 and rotating the reels 38, 40, the means including a transmission by means of which the reels may be operated to retain, pay out, or take in belting such that in operation the upper run 34 is held stationary relative to the chassis or is moved with the plate 28 with the length of the belt being varied. Thus when the plate is advanced beneath an object the upper run 34 is held stationary so that there is no friction between the object and the belt, whilst when the plate 28 is retracted or extended with an object both runs are moved with the plate. When the object is to be removed from the plate 28, the plate is retracted and the upper run is held stationary. A lower plate 38 moves with the upper plate and includes an endless belt 26, held stationary relative to the chassis 10 to eliminate friction with a surface from which an object is to be lifted. A motor 42 drives a drive shaft 48 carrying sprockets 50 connected to the reels 38, 40 by chains on further sprockets and clutches to drive the reels at the same speed as the plate 28 is advanced. The reel 40 is braked by an electric brake. A chain 60 meshes with sprockets on the shaft 48 and with sprockets 62 connected to the reel 38 to drive same at twice the speed of movement of the plate 28.
Patent GB-931542-A (GB)
Title: Clock or watch regulator
IPC: G04B18/02
Filed: 1962-02-02
Abstract: 931,542. Watches. PARECHOC S.A. Feb. 2, 1962 [Feb. 22, 1961], No. 3986/62. Class 139. In a watch or clock regulator, the outer end of the balance spring 5 is clamped between fixed and movable jaws 3b and 6 respectively by a clamping screw 8 which threadedly engages one of the jaws and has an undercut groove 8a adjacent the head of the screw and engaged in a keyhole slot in the other jaw, the jaws being relatively movable to clamp or unclamp the spring by turning the screw.
Patent GB-1060582-A (GB)
Title: Improvements in electrical signalling systems employing frequency modulation
Inventor: CLARK ADRIAN PERCY
IPC: H04L27/144
Filed: 1964-01-30
Abstract: 1,060,582. Data transmission. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. Jan. 26, 1965 [Jan. 30, 1964], No. 4014/64. Heading H4P. A receiver for frequency shift signals comprises two circuits in series, each tuned to the geometric mean of the two received frequencies, the output of the second circuit being added to a reference signal which is 90 degrees out of phase with the received signal. Each tuned circuit produces a phase shift, and the final output when one of the signals is received is substantially zero. In one form of the invention, the received signals after limiting are fed via transformer T1 to the first tuned circuit C4, L1. Transistor X1 clamps the current from this circuit between two levels to give symmetrical clamping over the frequency range used, and the tuned circuit gives a 45 degrees phase shift. The current through X1 and transformer T2 feeds the second tuned circuit. A further phase shift of 45 degrees occurs here, and the signal V3, 90 degrees out of phase with the input signal, is added to the signal V2 appearing across the second tuned circuit. The resultant signal V4 will therefore be large or very small, as indicated by the vector diagrams, in accordance with the received frequency. The output is rectified, filtered and converted to a square wave. In a second embodiment the second tuned circuit is duplicated to provide a balanced circuit giving four outputs-two pairs of like envelopes, but with carriers out of phase. The rectification filtering and squaring occurs in transistor circuitry, Fig. 3 (not shown).
Patent GB-1293144-A (GB)
Title: Improvements in or relating to flowmeters
Inventor: SMITH IAN CHARLES PARK
IPC: G01M3/28
Filed: 1969-10-03
Abstract: 1293144 Testing valves; linkwork I C P SMITH 4 Jan 1971 [3 Oct 1969 28 Jan 1970] 48598/69 and 4016/70 Headings F2K and F2V [Also in Division G1] A fluid flowmeter comprises a reservoir 6, a capillary tube 8 connected to and inclined upwardly from the bottom of the reservoir, a fluid transfer tube 3 connected between the top of the reservoir and the other end of the capillary tube having a first opening 1 near its connection with the reservoir 6 and a second opening 5 at its opposite end and a valve 4 between these two connections.  In us a liquid 10 is placed in the reservoir, a stop cock or other article whose freedom from leaks is to be tested is connected with rubber or plastics tubing at 5. With valve 4 open, air at a pressure of 3PS1 is introduced to the apparatus. Valve 4 is then closed and as air leaks out of the stop cock &c., the movement of liquid along the capillary between pointers 14 is timed. Rates of air flow as low as 1 Á 1 per minute have been observed. The timing may be achieved automatically (Fig. 4). Synchronous motor 36 turns cams 37 and 40 and drives photo-electric cell 29 and lamp 30 along capillary tube 26 from reservoir 25 and back. At the moment the cell and lamp begin their return journey solenoid valve 23 closes and the point at which the cell and lamp detect the liquid column in tube 26 is determined by the rate of leakage from the body under test and the (known) rate of movement of the cell and lamp. This position determines the voltage of the secondary coil of transformer T1 whose armature 38<SP>1</SP> is moved in accordance with the rotation of cam 37 also driven by the motor 36. The voltage is thus proportional to the rate of leakage from the article under test. Cam 40 controls the positions of switches 24 and 39. Switch 24 controls the solenoid valve 23 and switch 39 renders the photo-electric scanning head inoperative on its outward stroke along the capillary. The scanning head repeats its movement so that successive rates of leakage are obtained. The linkwork controlling the movement of the scanning head 29, 30 comprises disc 34 driven by the motor 36 which carries pin 33 which engages slot 32 on lever 31. The end of the lever 31 opposite the scanning head comprises a sliding pivot.
Patent GB-1369158-A (GB)
Title: Machine tool having a device for monitoring the drive for an apparatus controlling the operation of the tool
IPC: B30B15/28
Filed: 1972-01-28
Abstract: 1369158 Presses KOMBINAT UMFORMTECHNIK ERFURT VEB 28 Jan 1972 4108/72 Heading B3H [Also in Division B5] The drive shaft 2 of a mechanical press is driven through a clutch and is connected through gearing 3, 4 to a control apparatus 6 for the press, a switch 10 in the clutch control circuit opening to cause the clutch to become disengaged when the drive to the control apparatus fails or is interrupted. The switch 10 is in parallel with a switch 8 which is opened upon the drive shaft reaching its rated speed and switch 10 closing. The switches may be constituted by direct current generators or magnetic speeddependent switching elements. The control apparatus is operated by means of limit switches.
Patent GB-1445212-A (GB)
Title: Preparation of phenyl propionic acid derivatives
IPC: C07C45/54
Filed: 1974-01-29
Abstract: 1445212 2 - (4 - Alkylphenyl) - propionaldehydes NISSHIN FLOUR MILLING CO Ltd 29 Jan 1974 [29 Jan 1973] 4175/74 Heading C2C The title compounds of Formula I in which R<SP>1</SP> = C 2-4  alkyl, are prepared by treating a compound of Formula IV in which R<SP>2</SP>=H, C 1-3  alkyl or an equivalent of a salt-forming metal, with an acid at an elevated temperature. The aldehydes are characterized by means of their 2,4-dinitrophenylhydrazine derivatives. Compounds I may be oxidized to form the corresponding anti-inflammatory 2-(4- alkylphenyl)-propionic acids. Compounds IV are prepared by treating a compound of Formula II in which R<SP>2</SP>= C 1-3  alkyl, with a Lewis acid in an aprotic polar solvent, to form the esters of Formula IV, and, if desired hydrolysing these by means of an acid or alkali to form the corresponding acids and salts.
Patent GB-956510-A (GB)
Title: Batch-weighing machine
IPC: G01G13/00
Filed: 1962-01-30
Abstract: 956,510. Weighing-apparatus. C. G. J. LASSERON. Jan.30, 1962 [Feb. 6, 1961; Jan. 16, 1962], No. 4185/62. Heading G1W. A batch-weighing machine comprises a supporting frame, a weighing device including a discharge hopper 20a for the material being batched, a supply device 10, 11 to convey the material to the hopper and control elements 26, 27 adapted to be actuated by the weighing device to control the operation of the supply device, the weighing device and the control elements framing a single-unit assembly which is detachable mounted on the frame. The frame comprises vertical and sloping members 2, 3, 4 and a cross-beam 20 is fixed to the frame by wing-nuts. On the cross-beam is a knife edge 24 on which the steelyard is fulcrummed, as well as the control elements 26, 27. The supply device comprises belts 10,11, the conveyer belt 10 having a width several times greater than that of the belt 11 and having cross-strips 12, 13 spaced so that, in each space, the quantity of material conveyed is the bulk of that to be weighed, being about one unit short. The belt 11 also has cross-strips, 14, 15, which are spaced to include, between eyeing two strips, one unit-quantity. The poise 25 is adjusted to weigh a certain quantity, e.g. 25 kilograms, and the end 20 of the steelyard then operates the controls 26, 27 which cause motors 16, 17 to drive the conveyer belts. The material is tipped into a shoot 5 and both the belts convey it to the hopper 20a. At a weight of about 24 Kg. the steelyard tilts sufficiently to release the control 26 and stop the motor 16, the same control causing a flap 18 to move to a position 18a. Thus the belt 10 ceases to deliver material to the hopper 20a, the new position of the flap 18 preventing any spillage into the hopper. Unit weights of material are still delivered by the belt 11 until the steelyard releases the control 27, when the belt stops and the corresponding flap comes into the position of closure. The operation then opens a door 30 at the bottom of the hopper, or this is accomplished from the control 27, and the weighed quantity is transferred through a shoot 28 into a bag. The shoot 5 may have a position to divide it into compartments corresponding in their capacities to those of the belts, and different materials may be put in the compartments of a mixture is to be bagged. A deflection may be interposed to direct material into certain parts of the hopper and to absorb shock. The slope of the elevators may be adjusted to regulate the quantities of material conveyed between the cross-strips.
Patent GB-1432862-A (GB)
Title: Windscreen-heating arrangements
IPC: G05D23/24
Filed: 1973-01-26
Abstract: 1432862 Automatic control of temperature PLESSEY CO Ltd 15 Jan 1974 [26 Jan 1973]  4210/73 Heading G3R A windscreen heater element WH, Fig. I, e.g. of an aircraft or other vehicle, is energized by current pulses via transistors T2, T3, the mark/ space ratio of the pulses being controlled by a pulse width modulator circuit PM as a function of the deviation in windscreen temperature, sensed by a resistive sensor THR, from a desired temperature. A constant amplitude pulse is produced by a differential amplifier DA of the modulator PM each period a control voltage V E , constituted by a sawtooth voltage V S  from a relaxation oscillator ROS plus a variable voltage V EO , exceeds a DC reference voltage level VR, as illustrated in Fig. 2. The voltage level VEO, and hence the control voltage VE, is modified as a function of the temperature deviation by a signal from a bridge circuit BC containing the temperature sensor THR Overcurrent prevention is effected by a feedback arrangement (schematically shown) via a resistor VAR.
Patent GB-594767-A (GB)
Title: Improvements in or relating to tracks for self-laying track-type vehicles
IPC: B62D55/21
Filed: 1944-03-07
Abstract: 594,767. Endless tracks for vehicles. GOODRICH CO., B. F. March 7, 1944, No. 4232. Convention date, Feb. 3, 1943. [Class 79 (i)] A vehicle endless track comprises a flexible band with a reinforcing flexible tension structure, e.g., wire cables, and connection means on the ends of the flexible tension structure including, a body of rubber-like material and a housing therefor.. The housing may include an inner member with a separating layer of rubber-like material, the inner member being connected to the other end of the flexible band. As shown in Figs. 1 and 2, the track comprises flexible cables 13 terminating in ferrules 14 held in the hinge member 15, e.g., by making the latter in two parts 15a, 15b and riveting them together with the ferrules between, the whole being embedded in a resilient material such as rubber, extra clamping member 18 for maintaining the cables 13 in their correct spacing being provided at intervals. Each hinge member 15 contains a bush 33 of rubber-like material and an inner metal bush 32. The hinge members of the two ends 10, 11 interlock and a metal rod 35, preferably splined on the outside, is forced through the inner bushes 32. In a modification, Figs. 8 and 9, the flexible cables 60 and their ferrules 61 are secured in a hinge member 64 which traverses the full width of the flexible track, and each end of the track is similar. The hinge member 64 contains a rubber bush 67 and an inner bush 68 which extends on either side of the track, the ends thereof being secured by links 71 to the corresponding parts on the other end of the track. Instead of the arrangement shown for clamping the cable ferrules to the outer hinge member, the latter may be of simple cylindrical shape and drilled to receive the shanks of the ferr.ules.
Patent GB-524877-A (GB)
Title: Improvements in and relating to canning
IPC: A23B7/144
Filed: 1939-02-09
Abstract: 524,877. Canning food. TRITTON; S. M. L. W. Feb. 9, 1939, Nos. 4309 and 13968. [Class 49] In canning foodstuffs containing fruit acids, vegetable acids or corrosive pigments, a canning liquor is used which contains pectin equivalent to not less than 0.25 per cent. of 100-grade pectin as a corrosion inhibitor. An amount of pectin less than the amount which would cause gelling is used. It is stated that with this amount a protective film is formed on the inner surface of the can. The pectin may be obtained wholly or partly from the material to be packed by heating it in water, the water containing the pectin extracted being used as part of the canning liquor. Examples are given of canning liquors (a) for prunes, consisting of a 20 per cent. syrup containing 0.5 to 0.75 per cent. pectin, (b) for cherries, consisting of a 50 per cent. syrup containing 0.5 per cent. pectin, and (c) for plums, consisting of a 50 per cent. syrup containing .025 or .05 per cent. pectin according to the ripeness of the fruit.
Patent GB-548287-A (GB)
Title: Improvements in locking devices for aircraft undercarriages and like uses
IPC: B64C25/20
Filed: 1941-04-01
Abstract: 548,287. Aircraft landing gear; hydraulicallyoperated fastenings. VICKERS-ARMSTRONGS, Ltd., and WALLIS, B. N. April 1, 1941, No. 4373. [Class 44] [Also in Groups XXIX, XXX and XXXIII] A locking device for holding a movable member against movement, except by force applied through the releasing and operating means provided, is described as applied to locking the landing wheels 10 of an aircraft against movement or collapse from the landing position shown in full lines under external forces such as landing shocks. The wheels are carried by a frame pivoted at 11 and comprising members 12, 13, 14 with link 15 and radius rod 120 pivotally connected to a cross-head 16 mounted on a double-acting piston 17 which raises the wheels to, and maintains them in, the raised position shown dotted, or lowers them to the landing position. The piston works in a cylinder 18 pivoted at 181. Cross-head 16 is mounted for limited sliding movement on a reduced extension of the piston by pin 19 passing through a slot 191. The upper end of member 16 forms a sleeve 161 extending into a socket 24 provided at the lower end of cylinder 18 and has a terminal enlargement 162 with cylindrical outer surface and conical lower surface. Also mounted for limited sliding movement on the reduced part of piston 17 and slightly entering sleeve 161 is a sleeve 20 with cylindrical outer surface 202 and conical upper surface 203. These two enlargements are held apart as in Fig. 2, by springs 21 within sleeve 161. Housed within socket 24 and circumferentially spaced by springs, not shown. are rockable detents 26 of general ' crescent form with inturned noses separated by the concave portion. The detents are of such size that when one nose engages behind one enlargement the other nose rests on the other enlargement if the enlargements are in their separated condition. Fig. 2, shows the lower noses engaged behind the lower surface of enlargement 162 and the upper noses resting on cylindrical surface 202. In this condition the detents cannot rock and member 16 is locked against downward movement by external force applied thereto. On downward movement of the piston by fluid pressure in order to raise the undercarriage, initial movement brings the upper enlargement into contact with the lower, thus freeing the upper noses from surface 202. In this condition the detents can rock and further movement of the piston causes the conical surface of enlargement 162 to rock the detents to the released position shown in Fig. 5, in which continued free downward movement of the piston is permitted. When the piston is retracted a similar process restores the parts to the locking position of Fig. 2. Micro switches such as 29 co-operating with suitably disposed grooves such as 30 are provided to close the circuits of suitably coloured lamps in the cockpit to indicate the raised or lowered condition of the undercarriage.