baber/WOPTO huggingface dataset:
Patent GB-371528-A (GB)
Title: Improvements in power hammers
IPC: B21J7/24
Filed: 1931-02-24
Abstract: 371,528. Power hammers. EUMUCO AKT.-GES. FUR MASCHINENBA U, Schlebusch, Leverkusen, and SCHNEIDER, A., 10, Ostendorfstrasse, Diisseldorf, both in Germany. Feb. 24, 1931, No. 5787. [Class 83 (iv).] The tup rod of a fluid-operated power hammer is movable relatively to the tup, against a fluid cushion in both directions. A piston i, carrying a hollow piston-rod e, is movable in a cylinder k by fluid pressure admitted on either side of the piston by a valve p, controlled manually by levers o<1> or automatically through levers o from a lever n bearing on the inclined face of the tup b. When the rod e is raised relatively to the tup b, air is compressed above the lower piston d and acts as a cushion. When the rod moves downwards faster than the tup, air is compressed on the lower side, the effect being increased by the admission automatically from the valve p of compressed air through a telescoping pipe q, hollow rod e, and channels d<1>, c<1> in the piston and tup wall respectively. In a modification channels f, g, Fig. 2, are provided connecting the tup bore to atmosphere, the cushioning being obtained either solely by compression of the contained air on either stroke, or by such compression together with the admission of fluid pressure as in Fig. 1. A further modification comprises a spring s, Fig. 3, a liquid t, and an air space u, as the cushioning means, a channel c<1> connecting the upper and lower portions of the tup bore. A form is also described in which the construction of Fig. 3 is modified by dispensing with the spring s, and continuing the bore of the piston rod throughout its length to communicate with the source of fluid pressure as in Fig. 1.
Patent GB-1213618-A (GB)
Title: Toy guns
Inventor: FERRI GIAMPIERO
IPC: F41B9/00
Filed: 1969-02-04
Abstract: 1,213,618. Water pistol. G. FERRI. 4 Feb., 1969 [26 April, 1968], No. 5875/69. Heading A6S.  A water pistol comprises a casing, a discharge nozzle (41); a pressurized liquid reservoir 37; a trigger 19 to actuate a pump 15; and. controllable communication means between the pump and pressurized reservoir, and between the pressurized reservoir and nozzle. As shown in Fig. 3, a further reservoir S is provided, from which the pressurized reservoir may be filled by the pump, and a distributor 31 operated by an external 3-position catch makes it possible (a) to transfer water from S to the reservoir 37 by continual pulling of the trigger, (b) to cause a continuous stream of liquid supplied by reservoir 37 to issue from the nozzle independently of the trigger, and (c) to permit pumping of water to the nozzle as in conventional water pistols.
Patent GB-234909-A (GB)
Title: A new or improved differential for automobiles
IPC: F16D41/16
Filed: 1924-03-07
Abstract: 234,909. Cantlie, K. March 7, 1924. Free-wheel gearing. - Comprises a ratchet differential gear in which pairs of ratchet wheels 18, 19, are mounted on the axle shafts 2, 20 and are engaged by pairs of pawls 6, 10, 11, 15 carried by the driving member 1. The teeth in each pair of ratchet wheels are set for opposite directions of rotation. The pawls 6, 10 face in opposite directions and are mounted on a shaft 5 loosely carried by the member 1, the pawl 10 being fixed to the shaft while 6 is connected to the shaft through a spring 7 having a pin and slot lost-motion connection with the shaft. Similarly the pawl 15 is fixed on a sleeve 4 loose on the shaft 5 while the pawl 11 is connected to the sleeve through a spring 12 and a lost-motion connection. The spring and lost-motion connection of the pawls is such that when one pawl is engaged with its ratchet wheel the other pawl of that pair is held clear of its wheel. Thus when the member 1 is rotated in one direction the drive passes through the pawls 6, 15, while the pawls 11, 10 drive in the reverse direction. Either side but not both can over-run the driving member. In a modification the pairs of pawls may be separated 180‹ from each other on the driving member.
Patent GB-1088699-A (GB)
Title: Improvements in and relating to article dispensing apparatus
IPC: G07F11/02
Filed: 1966-02-10
Abstract: 1,088,699. Article dispensing apparatus. CAPTAIN INTERNATIONAL INDUSTRIES Ltd. Feb. 10, 1966 [Aug. 9, 1965], No. 5948/66. Heading A4T. Room service apparatus comprises a cabinet having various articles stored on hinged shelves 22 and stacks of cans 81 releasable one at a time on to a shoot 88 leading to an extraction trough 101 when a selected switch 108 is operated in a keyopened console to actuate either a solenoid 51 which raises a ratchet bar with openings permitting a crank on a selected shelf hinge to pass through and release an article or a solenoid 83 to tilt a spring- loaded trough 75 to release one can. Each switch 108 also starts a stepping switch which, in co-operation with a shoot switch operated by an article thereon and a switch 106 operated by raising the shoot when opening the trough 101 to extract the article, allows pulses to operate a remote indicator 216, summate the price of the articles and return the mechanism and switches to a position for the dispensing of the next article. The switches are interlocked for only one actuation at a time.
Patent GB-667488-A (GB)
Title: Improvements in or relating to power lift mechanism for agricultural tractors
Inventor: MOTT CARL WHEELER
IPC: A01B63/10
Filed: 1950-03-10
Abstract: 667,488. Machinery guards. INTERNATIONAL HARVESTER CO. March 10, 1950, No. 6084/50. Class 80 (iv). A guard device for a pair of closely positioned power lift rocker arms 25, 30 of an agricultural tractor for preventing a hand or arm of the operator or other foreign body becoming jammed therebetween comprises wings 40, 41 secured to, or integral with, the arms 25, 30 and extending therefrom so as to prevent in all relative positions of the arms the interposition of an object between them.
Patent GB-579007-A (GB)
Title: Improvements in or relating to infinitely variable speed gears
IPC: F16H9/16
Filed: 1944-04-01
Abstract: 579,007. Expanding-pulley belt or chain gearing. BOOTH, A., and COLES, F. H. April 1, 1944, No. 6108. [Class 80 (ii)] Flanges 4, 5 of expanding-pulley pairs are axially adjusted in unison by turning a spindle 6, with opposite-handed screw-threads carrying nuts 16, which are integral with thrust-bearing housings 18 of one pulley 5 and are connected to similar bearings 23 of the other pulley 4 by levers 20, which fulcrum on pins 25 on freelymounted forked brackets 15. which are displaceable axially of the spindle 6 and are loaded axially inwards as by compression springs 40 or by the centrifugal force on belt or chain tread-members slidable radially on the pulleyflanges, so as to tend to close down pulley 4 without affecting 5, thus providing an automatic adjustment of belt or chain tension for normal running. Belt-tension is initially adjusted by independently turning bushings 7, on which the fulcrum-brackets 15 are freely mounted, the bushings being screw-threaded on the spindle 6 and provided with abutment-flanges 8, which take the reaction of the springs 40 and also allow a limited axial float of the spindle 6 in the fixed casing 1 to allow the belt freedom to centre itself on the pulleys. The bushings 7 are normally secured to handwheels 11 on the spindle 6 by set screws 13, which are slackened to permit independent adjustment of the bushings. In a modification, the spindle 6 is mounted on the opposite side of the pulley 5 and the bushings 7 are mounted on a separate threaded spindle. In an arrangement for two belts in parallel, (Fig. 3, not shown) two pulleys are mounted side-byside on a common shaft, the outer flanges being adjusted by levers as above, the movement being transmitted to the inner flanges by an axially split splined internal sleeve, the halves of which couple the respective inner flanges to the remote outer flange. A countershaft four-pulley arrangement (Fig. 4, not shown) with aligned driving and driven shafts and two belts in series is also described. The outer flanges are adjusted by levers, as above, whilst the inner flanges move together, a thrust-bearing being provided between the inner halves of the driving and driven pulleys.
Patent GB-1091545-A (GB)
Title: Method of treating low-acid food to improve its keeping properties
IPC: A23C13/16
Filed: 1965-02-12
Abstract: A nisin-producing strain of Streptoccus lactis is cultured in a milk caseinogen medium maintained at a pH of 6.0.  The casein or paracasein is then precipitated, the curd cut, and the pH adjusted to 4.5 or less.  The drained-off whey, together with acidified-water washings of the curd, is foamed and nisin is salted out of the recovered broth, dried and ground.ALSO:Low-acid foods of pH between 6 and 7.2 are preserved by adding nisin to the food and then subjecting the food to a heat treatment having an F value of from 0.01 to 6.0. The F value, which describes the amount of heat necessarily applied to a food product to sterilize it, is the equivalent in time in minutes that every particle of the product is held at 250 DEG F. assuming instantaneous heating and cooling.  Examples are given of the preservation of chocolate flavoured milk, evaporated milk, homogenised milk, whipping cream and coffee cream.  Other suitable foods having a pH between 6.0 and 7.2 are asparagus, beets, lima beans, spinach, mushrooms, cream style corn and ice cream mixes.
Patent GB-490552-A (GB)
Title: Improvements relating to domestic grates
IPC: F24B1/182
Filed: 1937-03-03
Abstract: 490,552. Cooking - ranges. FORTH & CLYDE & SUNNYSIDE IRON COS., Ltd., and BROWN, J. March 3, 1937, No. 6287. [Class 126] In a range comprising two hobs 1, la, a fireplace 2 between the hobs, flues 7 beneath the hobs, and an oven 4 above and behind the hobs and heated by flues 6 connectible with the flues 7, a sliding hood 5 accommodated below the oven is provided with a movable front plate 14 which when not in use is accommodated in a horizontal position against the underside of the top plate of the hood. The hood 5, which is slidable from a position under the oven to a position over the fireplace, is of inverted-channel shape, and has L-shaped guides 13 at the sides so that the plate 14 can be slid from a vertical to a horizontal position. Behind the fireplace 2 is a boiler 9 beneath and behind which is a flue 10 leading to the oven flues 6. The flue 10 is controlled by a sliding damper 11, with an upright plate 12 to close the rear end of the hood 5 when the latter is in its rearmost position. When the hood is drawn forward, the hot gases can pass directly to the flues 6. Pivoted dampers 8 control the connection between the flues 7 and the flues 6. The hobs are connected at the back by a back-strap 3.
Patent GB-641650-A (GB)
Title: Improvements in malting plants and a method of malting
IPC: C12C1/15
Filed: 1947-03-06
Abstract: 641,650. Malting. HEIDENSTAM, E. J. VON and BÍDCHER, H. F. V. March 6, 1947, No. 6352. Convention date, March 6, 1946. [Class 14(ii)] A malting plant has a perforated malting floor (which may consist of several part floors), through which air is passed, means for supplying steeped grain to one end of said floor, and means for discharging the malted grain from the opposite end of said floor differentially located from said inlet zone, and compartments or channels below said floor for transporting air to or from the grain, the space below the floor being divided by walls extending substantially at right angles to the direction of transportation of the grain on the floor from the inlet zone to the outlet zone. In a preferred embodiment, a malting house 100 (Fig. 1) is fitted with a perforated sheet metal floor 101 which is divided into a number of compartments 102 by low walls 103 carrying rails 108 along their upper sides. Steeped grain is supplied, e.g., by a belt conveyer into compartment 1 by means of a moveable shield 107. Each day the grain is moved by car 109 from one compartment to the next until it is finally discharged from compartment 9. Air is supplied below the compartments through channel 104 and passes through the perforated floor upwards. In a modification Fig. 10 (not shown) the grain is lifted and moved by a pneumatic suction device. The malting compartments may be cleansed by a rotary brush and scraper system illustrated in Fig. 14 (not shown).
Patent GB-538632-A (GB)
Title: Improvements in studs
IPC: A42C5/02
Filed: 1940-04-10
Abstract: 538,632. Studs; buttons &c. GAUNT & SON, Ltd., J. R., and GAUNT, W. F. April 10, 1940, No. 6440. [Class 43] [Also in Group XXII] Studs, e.g. for use in connection with readily removable buttons or for use in spacing leather headbands from the main structure of crash helmets are made from blanks of the shape shown in Fig. 2. The hole 7 may be punched out or the tongue 6 may be initially narrower and the hole formed by slitting and expanding. The blank is then slit along the dotted lines 8 and bent preferably in the same operation, to the shape shown in Fig. 1.
Patent GB-163517-A (GB)
Title: Improvements in gaseous fuel burners
IPC: F23D14/58
Filed: 1920-03-03
Abstract: 163,517. Browne, A., (Cleveland Gas Burner & Appliance Co.). March 3, 1920. Atmospheric gas burners.-In a gas-burner in which the burner head is formed with an upper enlarged chamber 2 connected by flaring or tapering walls 4 to the lower reduced part, a core-piece comprising one or more corrugated or fluted sheet metal strips wound or shaped so as to form several passages is removably supported on a spider 3 within the upper chamber. In one form of burner, the core-piece for each burner head comprises a ring 9 containing a grid formed by coiling together a corrugated and flat strip 10, 11. The corrugated strip may be of thin gauze. In modifications, concentric corrugated strips may be employed or, when the burner head is square or rectangular, a corrugated strip folded in parallel layers may be used. The burner heads may be also of hexagonal or elongated form.
Patent GB-1056083-A (GB)
Title: A process for the manufacture of polyene ketones
IPC: C07C49/20
Filed: 1965-02-16
Abstract: A process for the manufacture of polyene ketones comprises reacting a secondary propargyl alcohol with an alkyl enol ether or dialkyl ketal of an aliphatic or cycloaliphatic ketone in the presence of an acid catalyst, heating the resulting ketal, with or without isolation, in the presence of an acid catalyst and, if desired, isomerizing the resulting allene ketone into the corresponding a , b ; g , d - or b , g ; d , e -unsaturated ketone by means of a strong acidic or basic agent.  The acid catalyst may be partly neutralized by a weakly basic compound.  In isolating the allene ketone it may be desirable to saponify any ketals present, e.g. with H2SO4.  The following are claimed per se <FORM:1056083/C2/1> <FORM:1056083/C2/2> <FORM:1056083/C2/3> where R1 in Formula V is C1- 12\t hydrocarbyl and in Formula VI is C1- 12 alkyl, alkenyl or cycloalkyl, R2 and R3 each stand for H or C1- 7 saturated or monoolefinically unsaturated hydrocarbyl which may be joined to form a ring and R11 is C2- 7 alkylidene, alkenylidene or cycloalkylidene.  6 - Phenyl - hexadiene - (3,5) - one-(2) is also prepared.  The phenylsemicarbazones of heptadiene-(4,5)-one - (2), 2 - [butadiene - (2,3) - yl] - cyclohexanone and octadiene-(4,5)-one-(2) are prepared.  Pentyn - (1) - ol - (3), 3 - hydroxy - 4,7 - dimethyl - octen - (6) - yne - (1), 3 - phenylpropyn-(1) - ol - (3) and 3 - cyclohexylpropyn - (1) - ol-(3) are prepared by reacting acetylene with propionaldehyde, 2,5 dimethyl-hexen-(4)-al-(1), benzaldehyde and hexahydrobenzaldehyde respectively.ALSO:Perfume compositions comprise ketones of formul <FORM:1056083/A5-A6/1> where R\sv is C1-12 hydrocarbyl, R2 and each H or C1-7 saturated or monoolefinically unsaturated hydrocarbon groups which may be joined to form a ring and R11 is C2-7 alkylidene, alkenylidene or cycloalkylidene.
Patent GB-125057-A (GB)
Title: Improvements in Automatic Fire Extinguishing Sprinklers.
IPC: A62C37/14
Filed: 1919-03-17
Abstract: 125,057. General Fire Extinguisher Co., (Assignees of Loepsinger, A. J.). March 30, 1918, [Convention date]. Sprinklers, automatic, of the type in which the valve is normally held on its seat by a frangible vessel nearly filled with a liquid, the expansion of which is adapted to fracture the vessel and release the valve. In the frangible glass or other vessel 9, which normally holds the valve 5 against a resilient seat 4, the liquid (e.g. ether) and the expansion space are of such relative volumes that the temperature of the liquid when heated sufficiently to fracture the vessel by its expansion is higher than its boiling-point at atmospheric pressures, so that on the fracture of the vessel the liquid vaporizes with explosive effect, thus shattering the vessel and ensuring unseating of the valve. Reference has been directed by the Comptroller to Specification 17199/02.
Patent GB-1418405-A (GB)
Title: Capacitive discharge ignition systems
IPC: F02P3/08
Filed: 1973-02-09
Abstract: 1418405 Ignition systems C A JACOBS 9 Feb 1973 6632/73 Heading F1B An ignition system for an internal combustion engine comprises a source of electrical power 11, an ignition coil 42, ignition spark gap elements (23) connected to the ignition coil, engine controlled switching means 21 for causing delivery of energy to the spark gap elements, a high voltage power supply coupled to the source of power, capacitive means 34, 38, 76 for storing electrical energy coupled to the power supply and to the ignition coil 42, control circuit means including a switching element 40 coupled to the capacitive means for discharging the capacitive means through the switching element and circuit means including an inductor 35 coupled in series with the capacitive means and the ignition coil for limiting the current flowing through the switching element 40 during discharge of the capacitive means and for ensuring back biasing of the switching element 40, a sufficient length of time to cause the switching element to turn off and thereby permit the capacitive means to be recharged. As shown the switching element 40 is a silicon controlled rectifier. Temperature sensitive switching means 36 is provided for connecting the capacitor 38 into the system during starting and warm up of the engine. The high voltage power supply comprises an inverter 29 which includes a pair of saturable transformers 20, 24.
Patent GB-589182-A (GB)
Title: Improvements relating to pneumatically actuated electric switches
IPC: H01H3/24
Filed: 1945-03-16
Abstract: 589,182. Electromagnetically - actuated valves. ALDIS BROS., Ltd., and ALDIS, A. C. W. March 16, 1945, No. 6702. [Class 135] [Also in Group XXXVII] A balanced valve controlling the supply of air in an electric switch, comprises a fixed body a having concentric chambers b, c, the chamber b having annular seatings e, f, for a pair of discs g, h which form the balanced value. When the solenoid o is energized, the stem i carries the discs g, h downwards against a biassing spring j until the core n engages an adjustable stop 12. Compressed air admitted to the chamber b via a port d, flows into the chamber c and forces a spring-loaded piston s upwards so that the movable contact x bridges a pair of dished contacts z, resiliently pivoted to spring-loaded members 4<2> (the second being disposed behind the other in the Figure) which move laterally, but in opposite directions, between insulating stops 11. When the solenoid o is de-energized, the valve closes and the compressed air escapes through a vent y in the descending piston. In Fig. 4 (not shown), the piston s is replaced by a metal bellows having an apertured end to which the disc u is attached.
Patent GB-564867-A (GB)
Title: Improvements relating to operating systems for windows, doors and like closures, andto control valves for use therein
IPC: E05F15/08
Filed: 1943-04-28
Abstract: 564,867. Door and window operating- appliances. TRICO PRODUCTS CORPORATION. April 28, 1943, No. 6732/43. Convention date, May 4, 1942. [Class 20 (iii)] [Also in Group XXV] In an operating system for windows, doors and the like, particularly. sliding windows of road vehicles operated from the intake manifold of the engine, wherein the window &c. is opened and closed by a piston and cylinder mechanism 8, 9, Fig. 1, having the fluid pressure on opposite sides of the piston normally balanced to hold the window open or closed, but unbalanced, by selective manual operation of one. of a pair of valves 14, to open or close the window, additional valve means 12 are positioned between the fluid pressure or suction supply line 13 and the pipes 15 leading from the valves 14. The additional valve means comprise two chambers 17, 18, Fig. 3, communicating through ports 19, 20 with a pipe 21 leading to the suction supply line 13. The central portion of one chamber, which can be shut off by a valve 34 from that portion containing the port 19, is connected by pipe 24 to pipe 11 leading to one end of the cylinder 9 and the central portion of the other chamber, provided with a similar valve 35, is connected to the other end of the cylinder. The valves 34, 35 are mounted on the same stems 38 as other valves 30, 32 which 'are normally closed on their seats 26, 29 by springs, but which when opened put one or other end of the cylinder 9 in communication with atmosphere through an adjustable throttle device 43, opening of one or other of the valves 30, 32 occurring simultaneously with the shutting off of the suction from pipe 21 through the closing of the corresponding valves 34, 35. Adjustment of the throttle device is controlled by handles 46 and regulates the speed of opening and closing. The portions of the chambers 17, 18 above the valves 34, 35 communicate through pipes 39, 40 with the pipes 15 leading to the operator-controlled valves 14, small orifices 50 being provided in the valves 34, 35. Depression of one or other of the valve buttons 14 admits atmospheric pressure above the valve 34 or 35 closing the same against the suction supply and simultaneously opening valve 30 or 32 to put one end of the cylinder 9 into communication with atmosphere.
Patent GB-609049-A (GB)
Title: Improvements in or relating to a device for retarding a moving body
IPC: B64F1/02
Filed: 1946-03-04
Abstract: 609,049. Aircraft arrester gear. DARLING, G. F. March 4, 1946, Nos. 6738 and 10589. [Class 4] [Also Groups XXX and XXXIV] In a spring controlled disc brake device for bringing a moving body' to rest, the body is connected to rope 4 which is wound on drum 3, threaded on screw' 9 so that as the rope is pulled out the drum moves along the screw against clutch plate 5 which is resiliently held by springs 6, which may be double. The friction increases till the rope stops paying out, the drum being held by the plate. A key may be fitted to bush 11 to re-wind the rope. It is used for safety belts, e.g. for linesmen, and may also be used in a pair for bringing landing aircraft to rest, each drum being mounted swivelly at the side of the runway and the two ropes being joined by a cable length so as to engage the aircraft as it lands.