baber/WOPTO huggingface dataset:
Patent GB-395347-A (GB)
Title: A system for the remote supervision of electric power circuits
IPC: H02J13/00
Filed: 1931-10-02
Abstract: 395,347. Switching systems; distantcontrol systems. AKTIESELSKAPET ELEKTRISK BUREAU, 17, Middelthunsgate, and AANDERUD, A., 32, Sorgenfrigaten, both in Oslo, Norway. Oct. 2, 1931, No. 27461. [Class 38 (iv).] In a system for the remote supervision of a plurality of substations connected to a main station over common line wires, the conditions of apparatus at the substations may be ascertained by connecting the stations to the line wires in succession so as to facilitate the transmission of supervisory signals having frequency characteristics which are indicative of the conditions of the apparatus at the various stations. The substations are employed for switching on or off power circuits and the system is such that switching is effected simultaneously at all substations by control current transmitted from the main station. A plurality of line circuits may radiate from the main stations, each line circuit being associated with a plurality of substations. Figs. 1, 2 and 3 show the substation equipment and Fig. 4 the equipment at the main station. Each substation has three line relays P, Q, RR connected in series with the line wires a, b which are connected at the main station to a control key N<1> and through a transformer CTT to a supervisory key N<2> impulse transmitting equipment and telephone apparatus. Normally the line circuit is closed over the contacts of the key N<1> in the position shown and relays Q at all substations together with relay CA at the main station are energized. Each pair of lines is provided with a jack LJ at the main station so that the main station may be selectively connected to a particular line or different lines may be inter-connected through cord circuits. Control of substation apparatus. As shown the position of the key N<1> corresponds to the " open " positions of the substation switches Sw. To close the substation switches, the key N<1> is operated so that the contacts b are moved to the right and reverse the polarity of the line current. The station relays P are then operated to energize relays A and in consequence the locking relays K which operate relays N to switch on the motors M<0> and thereby close the power switches at the substations. Upon operation of each motor a corresponding change-over-switch is operated and a contact m<1> reversed so as to prepare the " opening " circuit for the associated power switch. To open the power switches, the key N<1> is restored to reverse the line circuit and cause operation of relays Q, B, L, O which again operate the motors to open the switches. A lamp CCC controlled over the contacts of key N<1> indicates the condition of the substation power switches. During operation of the motors earth is applied to the b line over contacts k<3> or 13 to shortcircuit relay CA in the main station and operate a supervisory lamp CAA.
Patent GB-603377-A (GB)
Title: Improvements in or relating to scaffolding for use in the construction of cooling towers and like structures with sloping walls
IPC: E04G1/36
Filed: 1945-10-19
Abstract: 603,377. Scaffolding. HOLST & CO., Ltd., and MANNING, H. E. Oct. 19,1945, No. 27483. [Class 20(ii)] In a scaffold for use in the construction of cooling towers and like structures the main support members 1 are inclined to the vertical to follow the slope of the wall and are connected by horizontal members 6, 8 which form complete circles around the wall. The scaffolding is composed of angle-section steel (or wood) members joined by nuts, bolts and gussets to form a series of standard bays 4 interspaced by bays 7 of variable area which enable it to be adjusted to the contour of the wall. The horizontal members 8 of the variable bays are connected to putlogs 11 of the standard bay by means of hook bolts passing through slotted holes in members 8.
Patent GB-172771-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H50/20
Filed: 1920-09-29
Abstract: 172,771. British Thomson - Houston Co., Ltd., (General Electric Co.). Sept. 29, 1920. Electromagnetic switches.-The switch is normally closed, and the moving contact 12 is brought with a wiping movement from its normal position, Fig. 1, to the open position, Fig. 2, by the engagement of a pin 19 in the split end of the core 18, with a lever 13 when the electromagnet 17 is energized. The spring 23 is compressed during the movement, and on the corebeing released the arm 20 and spring act to turn the lever arm 13 counterclockwise, closing movement being completed before the core has reached its lowest position, so that its rebound will not bring the pin 19 in contact with the arm. The position of the contact 11 with respect to the winding 17 is such that the arc formed when the contacts separate is quickly extinguished by the flux of the winding.
Patent GB-322567-A (GB)
Title: A new or improved connection for pipes and tubes
IPC: F16L33/00
Filed: 1928-09-28
Abstract: 322,567. Macintosh & Co., Ltd., C., Maudslay, J., and Osborn, A. E. Sept. 28, 1928. Joints with yielding outer part compressed.- A flexible hose &c. pipe 2 is connected to the end of a rigid pipe or like member 8 by locating a metal ferrule 1, provided with one or more longitudinal slots 3, within the end of the flexible pipe, and constricting said ferrule around the member 8 by an external clip 6. The ferrule may be lined with rubber 5 along its slotted portion, while the member 8 is preferably provided with an enlarged end 7 at the rear of which the clip 6 is positioned. In a modification, Fig. 6, the ferrule has a supplementary part 1<a> located at the inner end thereof and provided with convolutions 1<b> adapted to engage with those of the inner metallic flex of the pipe to be connected.
Patent GB-755390-A (GB)
Title: Improvements in or relating to transplanting machines for agricultural and horticultural purposes
Filed: 1954-09-27
Abstract: 755,390. Transplanting-machines. FERNANDEZ, C. A. Sept. 27, 1954, No. 27825/54. Class 6 (1). In a transplanting machine of the kind comprising a frame 1 supported by an adjustable wheel 7 and a wheel 4 which drives the transplanting mechanism through gearing, a skid 17 extending the full length of the machine is provided for supporting the machine on soft or swampy ground. As shown in Fig. 4, the skid has a flat bottom which at the leading end curves upwardly and the upper surface 17<SP>11</SP> is of substantially helicoidal form. The skid is pivotally mounted on the shaft 3 carrying the wheel 4 by means of a bracket 18 and antifriction bearings. The transplanting mechanism comprises a plurality of tongs or grippers 9 connected to an endless chain 10 which pick up plants from two conveyers 8 and deposit them in a furrow formed by a plough and closed by a wheel 7<SP>1</SP> which together with the wheels 4, 7 are provided with rubber tyres.
Patent GB-809289-A (GB)
Title: Treatment of esters
IPC: C07C69/80
Filed: 1955-09-30
Abstract: Liquid esters of monohydric alcohols with polybasic carboxylic acids or of polyhydric alcohols with monobasic or polybasic carboxylic acids, which esters contain as impurity a neutral reaction product of a strong-acid esterification catalyst with the alcohol, are purified by heating at such temperature and for such time as to thermally decompose the impurity, and simultaneously contacting them with at least 1/10 by volume of water to dissolve the liberated acid, the water then being removed from the ester.  The water preferably contains in solution a substance which reacts with the catalyst, e.g. alkali metal hydroxide or salt of a weak acid, e.g. sodium carbonate. The free acid catalyst is thus removed as well as that from the decomposition of the reaction product.  The process may be applied continuously by introducing the ester and water into a heated zone (e.g. a tower or a closed circuit containing a heat exchanger) in which they are mixed under turbulent conditions.  Suitable apparatus for this is illustrated.  The time and temperature necessary can be determined by a preliminary test, and typical figures for octyl phthalate are 165 min. at 150 DEG  C., 90 min. at 160 DEG  C. or 60 min. at 170 DEG  C.; in general the range is 30-300 min. and 70-180 DEG  C.  Examples are given of the purification of octyl phthalate, butyl phthalate, octyl adipate and triethylene glycol di-2-ethylhexanoate, and it is stated that that butyl and nonyl esters may also be treated. Details are given of tests that may be applied to determine when the catalyst reaction product has been decomposed.  Specifications 590,130, [Group IV], and 635,656 are referred to.
Patent GB-1196285-A (GB)
Title: Improvements in Electron Discharge Devices
IPC: H01J23/24
Filed: 1967-06-16
Abstract: 1,196,285. Transit-time tubes. GENERAL ELECTRIC CO. 16 June, 1967 [29 Sept., 1966], No. 27880/67. Heading H1D. A broad-band power amplifier discharge tube includes a periodic interaction structure, a portion of which exhibits a log-periodic variation of resonance frequency along its length, an electron beam which is tapered at least over substantially that portion of the path corresponding to the log-periodic portion of the structure, whereby the input signal interacts with the beam at regions of the structure which are dependent upon the frequency of the input signal, to provide an amplified output signal from the structure. In the klystron structure of Fig. 1, a tapered electron beam produced by a gun 85 and focused by a tapered solenoid 104 is directed through the sequence of coaxial cavities 11 to 18, the diameter and axial length of which, together with the length of the interaction gaps 49 or 56, exhibit a geometrical progression along the sequence. The input signal is applied to the conductive rod 107 which passes through, but is insulated from, the sequence of cavities, the signal interacting with the beam at that region of the structure at which the resonance frequency approximates the frequency of the signal, to provide an amplified output signal at 108<SP>1</SP>. The effective input and output regions of the periodic interaction structure may immediately follow one another, or may be spaced apart by sections of negligible response, to provide an output which is an harmonic of the input frequency. In modified arrangements, the radially outer walls of the cavities 11 to 18 may be cylindrical, providing a stepped outer surface approximating the taper of Fig. 1 ; different progression ratios may apply along different sections of the sequence; and a permanent magnet focusing arrangement may replace the solenoid 104. To avoid the use of inconveniently small cavities at the output end, the final portion 28 of the structure is uniform, and preferably extends to the apex of the cone defined by the produced walls of the tapered section; over a range of frequencies the output and input are located in regions of only weak interaction between the beam and the structure, whereby end effects are rendered unimportant. In a modified arrangement (Fig. 2, not shown), the conductive rod 107 is coupled only to alternate cavities or groups of cavities, and different progression ratios may apply to the two sets. In a further device (Fig. 4, not shown), the periodic interaction structure is a travelling wave tube helix, the diameter and pitch of which vary along its length, or an interdigitated structure. In a device employing backward wave interaction, the input and output are at the collector and the gun end of the tube respectively, and the sense of the geometrical progression is reversed, such that the interaction structure is smallest at the gun end. Values for the progression ratio of from 0À9 to unity are referred to.
Patent GB-654030-A (GB)
Title: An improved ring balance gauge
IPC: G01K17/12
Filed: 1948-10-27
Abstract: 654,030. Ring-balance gauges. LANDIS & GYR SOC. ANON. Oct. 27, 1948, No. 27950. Convention date, Nov. 15, 1947. [Class 106 (ii)] A ring balance gauge of known type is mounted in inverted fashion so that the division 12 between the chambers is at the bottom of the ring and the flexible connections 8 to the source of pressure differential 6 are at the bottom of each chamber. The upper half of the ring gauge contains air 14 as shown in the Figure. In the example shown the inverted ring gauge is utilized to indicate the pressure differential existing at each device 6 representing a point of restriction of flow in a hot-water heating system. The ring-balance gauge may be combined with means 11 for measuring the temperature difference between the two points 10 on each floor in a building provided with a gravitational hot water heating system 1, 2, 3, 4 and also with a time-measuring device to provide a heat meter for each floor.
Patent GB-733088-A (GB)
Title: Improvements in butyl rubber
IPC: C08L23/22
Filed: 1952-11-06
Abstract: Butyl rubber is reacted with from 0.25 to 2.0 parts per 100 parts thereof of either 4-hydrocarbon - 2,6 - dimethylolphenols or heat-reactive oil-soluble self-condensation products thereof under such conditions as to render at least 10 per cent of the butyl rubber benzol insoluble.  The reaction may take place at 235 DEG  F. or, preferably, between 300 DEG  F. and 370 DEG  F. by mastication in a Banbury mixer with such materials as carbon black, clay, calcium carbonate, precipitated hydrated silica or calcium silicate, non-volatile hydrocarbon oil, phenyl beta-naphthylamine, zinc stearate, stearic acid and 2,6-ditertiary-butyl-para-cresol.  The reacted butyl rubber may be compounded with the usual vulcanizing ingredients and vulcanized.  U.S.A. Specification 2,392,855 is referred to.
Patent GB-285127-A (GB)
Title: Improvements in filters
IPC: B01D29/46
Filed: 1926-11-09
Abstract: 285,127. Pattison, E. W., (Metal Edge Filter Corporation). Nov. 9, 1926. Filters comprising grids or gratings.-The disc elements 16, Fig. 5, of an edge filter are of metal and have elevated spacing portions 31 formed by electrodeposition. The discs are mounted on a rod 1, Fig. 1, screwthreaded at both ends, one of which is hollow to serve as discharge passage for the filtrate. The cover 4 of the casing is held against a shoulder 2 on the rod by means of a nut 5, and the main body 9 of the casing is pressed against the cover by hinged bolts 10. The rod is of such a section that it centres and aligns the discs but does not fill the apertures 17 so that space is left for the passage of the filtrate to the top at which there are radial passages 15 in the rod communicating with the discharge passage 14. After the sheets have been assembled in the pack the outer surfaces of the pack are machined to remove any projecting ledges or burred edges. The filter is stated to. be applicable in pressure lubricating systems of motor vehicles.
Patent GB-447178-A (GB)
Title: Improvements in portable seats and the like
IPC: A47D1/10
Filed: 1935-10-11
Abstract: 447,178. Portable seats; infants' seats. REYNOLDS, S. C., 9, Belvedere Avenue, Lancing, Sussex. Oct. 11, 1935, No. 28131. [Class 52 (ii)] A foldable portable seat and tray structure of the kind adapted to be suspended from a seat back or other article comprises a back plate or back rest structure 1, a seat 4 hinged to the lower edge of the back, arms 8 hinged to the sides of the back and supporting a tray 7, links 17 pivoted to the seat and to the side arms, and hooks 13 on the back for suspending the seat. Chains 6 or the like may be provided to support the seat. The hooks 13 may fold, and a strap 15 for retaining a child in the seat may also be used to secure the device when folded. The device may be suspended from the back of the front seat of a vehicle for use as a tray or table.
Patent GB-512013-A (GB)
Title: Improvements in or relating to regulators
IPC: G05B6/05
Filed: 1938-09-27
Abstract: 512,013. Fluid-pressure servomotor-control systems. ELECTROFLO METERS CO., Ltd. (Republic Flow Meters Co.). Sept. 27, 1938, No. 28145. [Class 135] In an automatic regulator for valves, rheostats, and other controlling elements comprising a fluid-operated member such as the piston 12 controlled by a spring-loaded diaphragm-actuated relay valve 18 itself controlled by a valve 34 urged in one direction by spring means 60 operated by the oiston 12 or the like and in the other direction by a control force or loading pressure acting on a diaphragm 36, the spring means 60 are operated by the piston 12 or the like through a cam member 64 so as to balance the forces acting on the diaphragms 26, 36 when the piston 12 occupies a position corresponding to a predetermined value of the control force or loading pressure. The diaphragm 36 may be loaded by a controlling pressure responsive to a condition to be controlled, e.g., the steam pressure in a boiler but as shown in Fig. 1, the loading pressure in a pipe 38 is manually controlled by a pressure regulating valve 40. The latter comprises a valve member 44 actuated by a spring-loaded diaphragm 46. The loading spring 48 is adjusted by a thumb screw 56 engaging a spring-abutment 50 prevented from rotation by a fin 54. A bleed orifice 58 is provided in the casing 40. A manometer 59 registers the loading pressure. The valve 34 controls the exhaust of pressure fluid through a hollow stem 30, Fig. 2, carried by the diaphragm 26 of the relay valve. The pressure regulator 40, the relay valve 18 and restricted orifice 28 leading to the chamber of the diaphragm 26 are supplied with pressure fluid from a pipe 42. The spring means 60 comprises a blade spring the carrier 62 of which pivots with the cam member 64. The latter is engaged by a roller 66 on an arm 68 operated from the power piston 12 by a linkage 70, 72, 74. The piston 12 may be locked in any position by a thumb screw 80, Fig. 2, which clamps a segmented slotted plate 76 fixed on the same shaft as the arms 68, 70. The screw engages the end of a lever 24 positioned between the relay valve 18 and its diaphragm 26 so that the relay valve is mechanically coupled to the piston 12 and thus moved automatically in a direction to correct any drift of the piston. In the case of automatic control the loading pressure variations may be related to the variations in the control condition by a predetermined law. The Specification also describes a diagram which shows the relation between the piston travel and the loading pressure necessary to produce a linear relation between the controlled condition and the loading pressure in the case of a butterfly valve moving proportionally to the piston.
Patent GB-327181-A (GB)
Title: Improvements in or relating to galvanising baths
IPC: C23C2/00
Filed: 1929-08-03
Abstract: 327,181. Summers & Sons, Ltd., J., and Freeman, H. B. Aug. 3, 1929. Galvanizing.-A galvanizing bath containing spelter is provided with a jacket containing a fusible metal, preferably lead, so that uneven heating of the walls of the bath by the furnace is avoided. The jacketing chamber 3 between the furnace 2 and the spelter bath 1 is closed at the top by a plate 4 having a vent 9 and a feed opening 7 with a cap 8. The furnace 2 is heated by oil burners. The bath and the jacket may be made in one piece with a common bottom or the jacket may be made separately so that the bath may be inserted or removed as desired. Certain portions only of the bath may be jacketed if the fiames from the furnace do not impinge on all the walls of the bath. Inspection doors 12, 13, 14, 15 and an outlet 16 for flue gases are provided in the outer wall of the furnace.
Patent GB-408159-A (GB)
Title: Improvements in or relating to rotary pumps
IPC: F04D29/22
Filed: 1933-10-13
Abstract: 408,159. Centrifugal pumps. MASCHINENFABRIK A. D. SIHL AKT.- GES. VORM. A. SCHMID, 138, Sihlfeldstrasse, Zurich, Switzerland. Oct. 13, 1933, No. 28348. Convention date, Sept. 20. [Class 110 (i).] Knives 2b, which coact with the impeller R to sever extraneous rags, are mounted in spiral grooves 1 formed in the wall S2 on suction side of the pump. The depth of the grooves 1 is decreased by steps from the suction S1 to the discharge. The knives have a cylindrical wall 2c flush with the suction S1 and a surface 2 flush with the conical wall S2. They are held in wedge-shaped grooves by screws and the space above the screw head is filled with solder 4.
Patent GB-413621-A (GB)
Title: Improvements in electric filter circuits
IPC: H03H7/01
Filed: 1932-10-11
Abstract: 413,621. Impedance networks. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm. Oct. 11, 1932, No. 28351. Void [Abridged as open to inspection under Sect. 91 of the Acts, Oct. 31, 1932]. [Classes 40 (iii) and 40 (v).] The inductances forming a filter in a balanced circuit have the form of two oppositely connected transformers, in order that the balance may not be destroyed by the effect of disturbance currents or of signal currents on the value of the inductances. The Figure shows a telephone station D with high-pass filter HF using the same line l as two telegraph stations A, B, with low-pass filter LF. The inductances of the latter filter comprise two transformers M1, M2, having equal coils which are oppositely connected as shown. The system is symmetrically earthed at the mid points of the shunt impedances. A similar arrangement may be applied to a system comprising a telephone phantom circuit with two telephone side circuits on which carrier telephony is superimposed. (Fig. 3, not shown).
Patent GB-808760-A (GB)
Title: Improvements in control devices for steering vehicles
Inventor: MEREDITH FREDERICK WILLIAM
IPC: G05D1/12
Filed: 1951-12-04
Abstract: 808,760. Automatic steering control systems. SMITH & SONS (ENGLAND) Ltd., S. March 4, 1953 [Dec. 4, 1951; Nov. 1, 1952], Nos. 28374/51 and 27540/52. Class 38 (4). [Also in Groups XXXVI and XL (c)] An aircraft is steered towards a target by a signal proportional to the rate of rotation of the line of sight from the aircraft to the target divided by unity plus the rate at which the time to go to interception is varying. A signal representing the angle e between the line of sight and the scanner axis of a radar receiver is amplified at 4 and then multiplied at 5, 6 by R/#R where R represents the range of the target and #R the rate of change thereof. The signal from 6 is used to drive a gyro torque motor 3 correcting the receiver and is also used, after multiplying the R at 8, to control the aircraft by moving control surfaces that produce components of acceleration normal to the scanner axis and thus cause an accelerometer 10 on this axis to produce an opposing signal. The ratio R - is obtained by driving the potentiometer R tapping 6 and a similar tapping 21 by a motor 22, Fig. 2 (not shown), until the net input to an amplifier 23 is zero.
Patent GB-1287056-A (GB)
Title: Improvements in or relating to bearing seals
IPC: F16J15/3252
Filed: 1970-06-11
Abstract: 1287056 Bearing seals SKF KUGELLAGERFABRIKEN GmbH 11 June 1970 [14 June 1969] 28399/70 Headings F2A and F2B A rolling thrust bearing is sealed by a cap 4 secured to one race 1 and extending axially to partially surround the other race 2, and a sealing ring which has a resilient ring seal 6 whose radial outer periphery is located against the inner periphery of an axially extending portion of the cap, and has a lip 12 engaging the race 1 and a skirt 7 engaging the race 2. The portion of the bore 11 of the ring seal adjoining the surface of the lip that contacts the race is tapered. The sealing ring may be provided with a reinforcing ring 5.
Patent GB-302765-A (GB)
Title: Improvements in rail spikes
IPC: E01B9/06
Filed: 1927-10-26
Abstract: 302,765. Hawkes, W. T. B. Oct. 26, 1927. Chairs, securing to sleepers; chair plates consist of a rectangular sheetmetal body 1 with one or more pairs of jaws 2, 3 pressed up on one pair of opposite sides and downturned wings or prongs 5, 6 on the remaining sides. The wings may be parallel for metal sleepers, Fig. 7, or tapered for wooden sleepers, Fig. 6, and in the latter case they may be grooved or serrated. The jaws may be hammered over the rail flange.