baber/WOPTO huggingface dataset:
Patent GB-574964-A (GB)
Title: Improvements in and relating to frequency meters
IPC: G01R23/09
Filed: 1940-09-09
Abstract: 574,964. Frequency measurements. WEIGHTON, D., and PYE, Ltd. Sept. 9, 1940, No. 13998. [Class 37] In a frequency meter oscillations of which the frequency is to be measured are fed to a limiting circuit which selects the peaks only of each cycle and these peaks are employed to discharge a condenser charged from a source of potential, the peak voltage of the condenser is measured to give an indication of the time interval between successive peaks and thus of the frequency of the oscillations. The incoming signal is fed to a pulse-shaping circuit of the peak selecting type which gives a wave form consisting of one sharp pulse for each cycle. These pulses are fed to a discharge circuit comprising a condenser, the peak voltage across which is determined by the longest time interval occurring between the successive pulses. The sharp pulses are applied in positive sense to the grid of a gasfilled relay tube V1 through a condenser C1. This grid is negatively biased through a' resistor R1 so that the relay is only caused to conduct by the peaks of each pulse. When the relay tube V1 conducts, a condenser C3, which is charged from a source of high potential through a resistor R2, discharges through the relay. In the interval between the pulses the condenser C3 charges to a peak voltage depending on the interval between successive pulses, i.e., on the frequency. This peak voltage is measured on a voltmeter consisting of a diode V3, condenser C4, resistor R4, and galvanometer M. When measuring the beat frequency in apparatus for determining the distance of a body by a reflected wave, phase shifts occur at the end of each frequency sweep of the transmitter. For operating on such a signal a second gas-filled relay tube V2 is provided and has its grid negatively biassed through a resistor R3. Pulses derived from the saw tooth modulation are fed to the grid through a condenser C2, so that the condenser C3 is also discharged through the valve V2 at the end of each period, thus ensuring that it is not allowed to charge for a period longer than the interval between cycles of the incoming signal, but may be discharged after a shorter interval at the end of each saw tooth period.
Patent GB-592996-A (GB)
Title: Sealing ring
IPC: F16J15/36
Filed: 1945-06-05
Abstract: 592,996. Stuffing - box substitutes. GENERAL TIRE & RUBBER CO. June 5, 1945, No. 14149. Convention date, July 17, 1944. [Class 122 (v)] A sealing ring comprises an annular inextensible retaining shell 17 and an elastic rubber sealing band 12 within the shell adapted to. be expanded and held by circmnferential tension against the surface of a member 10 having an external diameter greater than the normal internal diameter of the band, and a soft cushioning band 22 interposed between the sealing band and shell and adapted to be placed under radial compression between the extended band and shell. In a modification, the tubular end of the sealing band is of U-cross-section to embrace the cushioning band.
Patent GB-1335064-A (GB)
Title: Apparatus for the manufacture of ampoules each having a non- return valve
IPC: B29C53/34
Filed: 1971-05-11
Abstract: 1335064 Making bags PECHORSKY NAUCHNO-ISSLEDOVATELSKY UGOLNY INSTITUT 11 May 1971 [21 Sept 1970 (2)] 14166/71 Heading B5D [Also in Division B8] An apparatus for the manufacture of ampoules each having a non-return valve includes driven rollers 8 and 9 for pulling a thermoplastic sheet in the form of two overlying sheets joined along one edge through a non-return valve shaping device 2, where the free edges of the sheet are folded inwardly, and then forming transverse welds in the sheet, before it is passed to severing rolls 4, 4a which rotate at a faster speed than feed rolls 3. The severing rolls separate the amp ules from the sheet gradually from one side to the other by means of either a helical projection 5 or by setting the axis of the severing rolls (7), Fig. 4 (not shown), at an angle to the transverse welds.
Patent GB-884696-A (GB)
Title: Method of preparing starch derivatives
IPC: G06F3/048
Filed: 1960-04-22
Abstract: Starch ethers are obtained by reacting ungelatinized starch in the presence of water and an alkaline catalyst with an agent selected from the methyl and ethyl esters of crotonic and itaconic acids or the esters of acrylic acid.  Specified esters are methyl acrylate, ethyl acrylate, butyl acrylate, methoxyethyl acrtlate, dimethylaminoethyl acrylate, diethylaminoethyl acrylate, benzyl acrylate, 2-ethylbutyl acrylate, 2-ethylhexyl acrylate, decyl acrylate, tridecyl acrylate, 2-bromoethyl acrylate, allyl acrylate, ethyl crotonate and dimethyl itaconate.  At least 10% of water must be present.  The starch may be derived from corn, waxy maize, wheat, potato, or rice, and may be raw or partially oxidized or gelatinized provided that the birefrigence is retained.  The reaction may be effected in a solution of sodium sulphate, sodium carbonate, or sodium chloride using sodium methoxide, sodium hydroxide, potassium hydroxide or barium hydroxide as catalyst.  The product is useful as a size and as a binder for asbestos and clay.
Patent GB-1089260-A (GB)
Title: Improvements in or relating to electric generating apparatus
IPC: B60L1/02
Filed: 1965-04-05
Abstract: 1,089,260. Rectifying. SOCIETE M.T.E. April 5, 1965 [April 3, 1964], No. 14310/65. Heading H2F. Apparatus for use in a locomotive for supplying a number of D.C. traction motors and a D.C. heating circuit, comprises an alternator having a plurality of secondary windings 3, 4, all operating in the same flux, each supplying one or more polyphase rectifier bridges 5, 6, each of which feeds a motor M1 M2, and the outputs of the bridges being connected in series to provide the D.C. heating supply.
Patent GB-419608-A (GB)
Title: Improvements in pianofortes
IPC: G10C3/02
Filed: 1933-05-18
Abstract: 419,608. Pianofortes. MORLEY& CO., Ltd., R., and MORLEY, F. D., 123, High Street, Lewisham, London. May 18, 1933, No. 14403. [Class 88 (ii).] A three-piece upright pianoforte comprises a string-casing a, tapering symmetrically downwards and recessed to accommodate an L- shaped detachable casing b, containing the keyboard and action, and bolted both to the string-casing a and to a detachable leg-frame c. The curved rim of the string-casing is in one continuous piece of plywood bent to shape and glued into position without steam. The back of the casing has spaced slats e. The Provisional Specification states also that a grand string-frame is used.
Patent GB-882177-A (GB)
Title: Improvements in or relating to apparatus for thermally conditioning heat-accumulative elements
Inventor: FLOWERS HERBERT RONALD
IPC: A47J39/02
Filed: 1958-05-06
Abstract: 882,177. Discharge of aluminium discs from a stack. ALLIED IRONFOUNDERS Ltd. April 28, 1959 [May 6, 1958], No. 14417/58. Class 78 (1). [Also in Groups XI and XIII] A stack of aluminium discs 1 are heated by heating elements 8 enclosed within chamber 2 insulated at 4 and are discharged one-byone in the recess 11a of slide 11, the slide being reciprocated by means of handle 11b so that the discs slide down shoot 5d into hotplates for catering purposes. For introduction into chamber 2 the discs 1 are carried on a carrier rod 12 provided with a supporting nut 16 and a handle 13 so that, when the rod carrying the discs is introduced into chamber 2, the rod is rotated so that by engagement with square hole 5j, the nut is released to fall down shoot 5k whilst the rod maybe withdrawn leaving the discs within the chamber. The discs may be heated by infra-red radiation or resistance or hot pipes. Alternatively, the discs may be cooled by cooling pipes or cold air.
Patent GB-699801-A (GB)
Title: A loading and unloading device for use with overhead conveyors
IPC: B65G47/57
Filed: 1950-06-09
Abstract: 699,801. Endless conveyers; terminals and stations for overhead ways. KING, D. M. May 21, 1951 [June 9, 1950], No. 14474/50. Classes 78 (i) and 78 (iv). A loading and unloading device, has a guidetrack extending between two different levels and separate down and up tracks arranged to merge or be interconnected by subsidiary track sections, a pivoted switch tongue at each section and a chain driven carrier engaging the guide track which picks up an article from an overhead conveyer and moves downwardly along a track section to a point where it can transfer the article to an underlying machine tool or the like, the carrier subsequently picking up the article and is diverted by a switch tongue to a further track section up which it is caused to move to deliver the article to a second conveyer or to another conveyer at a higher level. As shown in Fig. 1, the carrier comprises an arm 6 having a stirrup Y for holding the article such as a workpiece and rollers 8 which engage in guide tracks 1. The carrier has a link 9 connected with an endless chain 4 passing round sprockets 5. As the centres 12 of the toolpiece recede, the overhead con veyer is operated and the chain, the carrier picks up the workpiece and deposits it on the overhead conveyer 3 as the carrier negotiates a fork 10. The direction of travel is deter mined by a tongue in the fork. The carrier negotiates the central branch and receives a workpiece from the overhead conveyer 2. It then travels downwardly and deposits the workpiece in the toolpiece. The device is duplicated for stability. In an alternative form the device comprises two separate endless chains and two carriers. In another form the overhead conveyers may be superimposed and a modified carrier used in which the stirrup is replaced by hooks and the rollers are closer together; while the workpiece is in the machine tool the carrier is moved to a position of rest R.
Patent GB-1530689-A (GB)
Title: Fluid-pressure actuated axial-piston swash-plate machine
IPC: F01B3/00
Filed: 1976-04-09
Abstract: 1530689 Reciprocating motors KLOCKNERWERKE AG 9 April 1976 [13 May 1975] 14476/76 Heading F1A In a fluid motor comprising a cylinder block 1 with pistons 6 engaging a swash-plate 10 via articulated slippers 9, each cylinder 2 has a bush 3 with a coating 4 of low friction material, e.g. P.T.F.E., which permits the piston to rotate to maintain its slipper in full contact with the swash-plate at low running speeds.
Patent GB-1237625-A (GB)
Title: Improvements in or relating to direct current supply circuits for measuring bridges
IPC: G01N27/16
Filed: 1969-03-19
Abstract: 1,237,625. Measuring gas concentrations electrically. CHARBONNAGES DE FRANCE, March, 19, 1969 [March 21, 1968], No.14480/69. Heading G1N. [ Also in Division G3] In apparatus for measuring the content of combustible gas in the atmosphere by its catalytic combustion in a dosing filament, e.g. fire damp meters, the dosing filament 4 and a compensating filament 5 form two arms of a measuring bridge which is supplied from a constant voltage supply circuit. The supply circuit comprises a constant current source 3, which may be located remotely from the bridge and a shunt voltage regulator 10 which maintains the voltage Up across the bridge constant despite changes in the resistance of filament 4 due to the presence of combustible gas or due to ageing.
Patent GB-1497281-A (GB)
Title: Frame structures
IPC: E06B3/58
Filed: 1974-04-02
Abstract: 1497281 Glazing MIDLAND EXTRUSIONS Ltd 27 March 1975 [2 April 1974] 14516/74 Heading E1R A frame member comprises a core member 32A, beads 32B, 32C having abutment means engaged with means on the core member by movement transverse to the member, the beads defining a channel between them for receiving a pane 92. The abutment means comprises lips (43A) on the beads snap-fitting in grooves 38 in the core member. The beads and core have cooperating channel formations 42A, 34. The horizontal core members are connected to vertical members by screws engaging in bores 36. The vertical frame members (Figs. 5, 6) are formed from frame portions with a channel for receiving glazing, the portions being arranged back to back where appropriate. A cover member (32H) may conceal wiring.
Patent GB-974166-A (GB)
Title: Improvements in or relating to nuclear reactors
IPC: G21C5/18
Filed: 1961-04-21
Abstract: 974,166. Nuclear reactors. GUTEHOFFNUNGSHUTTE STERKRADE A.G April 21, 1961 [April 28, 1960], No. 14541/61. Heading G6C, In a nuclear reactor having two moderator zones in the first of which heacy water is used as the moderator and in the second of which a second, different, moderator is used, the fuel elements in the first zone consist of uranium oxide and at least most of the fuel elements in the second zone include uranium metal or uranium alloy. This enables the fuel elements in the heavy water zone to be operated at higher surface temperatures and a larger quantity of heat energy to be thus transferred to an organic or other coolant than would be the case if uranium metal or uranium alloy was used in the heavy water zone. The second moderator may be graphite and the uranium oxide fuel elements may be canned with zirconium or zirconium alloy. The high neutron fluxes in the heavy water zone may extend to the marginal regions of the second zone adjacent the heavy water zone, in which case uranium oxide fuel elements should also be used in these regions. The coolants circulating in the two zones may be kept separate in order to permit the thermodynamically higher level thermal energy which is available in the heavy water zone to be exploited, for instance for the purpose of driving heat engines, heat removed from the second zone being used for heating, or the two coolants may be mixed to form one coolant of uniform temperature prior to recovery in a heat exchanger of the heat energy extracted from the reactor. Specification 955,117 is referred to.
Patent GB-145479-A (GB)
Abstract: 145,479. Metallwerk Terna Berlin W. Sauerbrey Ges. July 27, 1918, [Convention date]. Combined rotary cylindrical and sliding tubular valves.-A rotary cylindrical valve f for steam heaters or the like, of the kind having radially and axially disposed flow passages k, s, comprises a tubular bush seat c having two or more openings therein, to which the fluid has access from the annular passage d. The valve f is split, as shown, for resilience, and is formed with at least two openings h at the bottom corresponding with the openings in the seat c. The spindle is connected to the valve f by means of a projecting pin engaging a hole in the valve f, as shown. The handle o is formed with a depending index finger t working in a slot q in an indicating-disk p. By removing the handle o, the spindle can be rotated to adjust the valve longitudinally for setting the maximum opening of the valve; for this purpose the spindle is screwed at n<1> to engage the casing.
Patent GB-544054-A (GB)
Title: Improvements in and relating to gravity feed forced-draught solid fuel burners for furnaces and the like
IPC: F23K3/00
Filed: 1940-09-27
Abstract: 544,054. Boiler furnaces. HOLMES, C. E. Sept. 27, 1940, No. 14668. [Class 51 (i)] In a furnace of the kind in which fuel fed by gravity passes over a blast pipe unit which forms a fuel shed and takes up an angle of repose on the furnace floor the blast pipe unit is mounted on that portion of the furnace which incorporates an ash-cleaning door so that clinker is formed between the door and the burning fuel. As shown in Fig. 1, the blast pipe unit is mounted on the ash-clearing door 7 and comprises a blast pipe 11b surrounded by a water jacket 11c having sloping upper walls over which fuel flows from the hopper 5 on to the furnace floor. The door is hinged about a vertical water supply pipe connected to the boiler and having connections 8, 9 to the jacket 11c. The hopper is hinged at 4. A blower 15 supplies air through a conduit 14 to the blast pipe unit. By swinging the door to one side the clinker formed at the back of the firebed may be readily removed.
Patent GB-1216281-A (GB)
Title: Catalysts
IPC: C07C15/02
Filed: 1969-03-20
Abstract: 1,216,281. Dehydrogenation catalysts. MONSANTO CO. 20 March, 1969 [22 March, 1968], No. 14677/69. Heading B1E. Dehydrogenation catalysts comprise (1) from 0.002% tO 50% of a Group 1B metals or oxides thereof (2) from 0.005-5% of Pt and Pd group metals or oxides or mixtures thereof, components (1) and (2) being deposited upon the surfaces of a thermally stable Al 2 O 3  catalyst support material of surface area at least 10m<SP>2</SP>/gm., an acidity factor not in excess of 2.0, a macropore volume of at least 0.05 cc./gm. Additionally the catalyst may contain combined alkali metal, e.g. Na 2 O, K 2 O or Li 2 O. Examples describe the preparation of CuO-Pt on Al 2 O 3 .
Patent GB-1039270-A (GB)
Title: Multi-scale electrical measuring instrument
IPC: G01R15/00
Filed: 1965-04-07
Abstract: 1,039,270. Two part couplings. SOSS MANUFACTURING CO. April 7, 1965 [Feb. 9, 1965], No. 14695/65. Heading H2E. [Also in Division G1] In a multirange electric meter (see Division G1) there are a plurality of input terminals 109 to 114 and the separable input leads 115a carry plugs 115 which fit these terminals. One of the terminals 109, is associated with a switch 119 which is closed whenever a plug 115 is in position as shown. If a connection between the two closely spaced terminals 109 and 110 is required, an alternative two-way plug 116 (Fig. 1B, not shown), can make both connections.
Patent GB-1245175-A (GB)
Title: Improvements relating to differential pressure regulating valves
IPC: F02C9/26
Filed: 1969-03-20
Abstract: 1,245,175. Gas turbine engine fuel systems. DAIMLER-BENZ AG. March 20, 1969 [March 20, 1968], No.14731/69. Heading F1G. [Also in Divisions G2-3] The pressure drop across a gas turbine fuel metering spool 3 is maintained constant for all positions of the spool by a by-pass spool 10 having a land SK which diverts fuel from inlet 8 to return line 43 via ports 42. Spool 10 has surfaces 12, 14 responsive to pressure in line 9 downstream of spool 3, a surface 16 responsive to pressure in inlet 8 upstream of spool 3, and a surface 19 responsive to a servo-pressure determined by a valve 22 carried by a diaphragm 21 supported by spool 10. The diaphragm responds to the pressure drop across spool 3 and positions valve 22 to admit fuel from chamber 24 to servo-chamber 37, the latter being connected to the low-pressure side 35 of the diaphragm via restriction 23 in valve 22. The actual value of the pressure drop is variable by restrictor 38" in the path from inlet 8 to chamber 24. Spool 3 is adjusted by an engine operating signal 7. In a modification, spool 10 has two areas responsive to the servo-pressure and an opposing area responsive to downstream pressure, the latter being assisted by a spring. This latter embodiment can be further modified by mounting the diaphragm and its pilot valve to the casing and subjecting the opposing area instead to a fixed loading pressure equal to the null value of the servo-pressure. The loading pressure is determined by a diaphragm valve (80) carried by the spool (10) and controlling admission from inlet (8) to the opposing area through spool (10). In another embodiment, the by-pass spool is housed adjacent to fuel pump and remote from spool 3 and the controlling diaphragm pilot. In this case, the return by-pass spool has inlet and servopressure opposing downstream pressure and a spring.
Patent GB-591144-A (GB)
Title: Improvements in or relating to means for discharging material from vehicles
IPC: B60P1/38
Filed: 1944-08-02
Abstract: 591,144. Vehicle fittings for unloading. GREEN, E. W. Aug. 2, 1944, No. 14743. [Class 78(iv)] Means for discharging material from the body of a vehicle consist of at least two endless chains which pass around pairs of sprockets mounted on shafts located adjacent the transverse edges of the body, and transverse slats or bars secured to said chains, and are characterised in that the chains are mounted and driven in such a manner that they and the slats or bars in the lowermost portion of their travel pass along the floor of the vehicle from front to back while in contact with the material directly above and then out of the end of the body so as to discharge the material therefrom and then pass over a pair of said sprockets located exteriorly of the vehicle body. In the embodiment shown in Fig. 1, the conveyer comprises scraper bars 10 secured to a pair of chains 11 running on sprockets on shafts 13 which are supported on the vehicle body 16 by a frame 14 comprising angle bars 15. The chains are driven from the vehicle rear axle 19 by a chain 20 engaging a sprocket 18 on an extension of the rear shaft 13a, and their tensions may be adjusted by blocks 21 slidable in guides 22 and supporting the front shaft 13b. During their passage along the top of the frame 14, the bars 10 are supported at their ends in guides secured to the frame. The rate of discharge from the vehicle is controlled by a plate 24 adjustably supported above the floor 27 on a rack 25 secured to the rear of the vehicle. Material may be discharged from the vehicle into a feeding or distributing device secured to the rear of the vehicle, such as an inclined apron, a bladed rotary shaft or a hopper.
Patent GB-446087-A (GB)
Title: Improvements in or relating to garden shears and like implements
IPC: A01G3/02
Filed: 1935-05-01
Abstract: 446,087. Lock-nuts; washers. MOORE, W. M., 91, Heretaunga Street, Palmerston North, New Zealand. May 1, 1935, No. 14774 /34. [Class 89 (i)] [See also Group XIV] In an anti-friction assembly at the pivot of hand-shears or the like, a nut G is locked by a transverse pin J which bears against a flat H on the pivot bolt B. Alternatively, a washer M, Fig. 8, has ribs N in engagement with grooves in the underside of the nut and a tongue m in engagement with a groove K in the bolt.
Patent GB-194208-A (GB)
Title: Improvements connected with fertilizers
IPC: C05B13/02
Filed: 1922-05-25
Abstract: Alkali metal compounds, obtaining from complex silicates.  A fertilizer is obtained by heating together a homogeneous mixture of a phosphate rock, blast-furnace slag or feldspar, and bye-products containing alkalies such as residues from sugar mills or distilleries, or wood grease.  The residue containing alkalies may be employed as such or may be first calcined and ground.  The mixture of the materials may be effected wet or dry, and the heating may be at 900-1300 DEG  C.ALSO:A fertilizer is obtained by heating together a homogeneous mixture of a phosphate rock, blast-furnace slag or feldspar and bye-products containing alkalies such as residues from sugar mills or distilleries, or wool grease.  The residue containing alkalies may be employed as such or may be first calcined and ground. The mixture of the materials may be effected wet or dry, and the heating may be at 900-1300 DEG  C.