baber/WOPTO huggingface dataset:
Patent GB-250907-A (GB)
Title: Improvements in or relating to the treatment of hides
IPC: C14C1/06
Filed: 1926-01-27
Abstract: 250,907. Le Petit, C. J. M. M. April 18, 1925, [Convention date]. Treatment preliminary to tanning.-Skins and hides are dehaired prior to tanning by the direct action of ferments e.g. lipases, proteases, nucleases, &c. produced by the culture of fungi particufarly penicillium glaucum and aspergillus niger. A nutrient bed of ripe seeds rich in diastasic elements optionally saccharified by fermentation is inoculated with lactic ferments with the addition of mineral activators e.g. salts of magnesium and cerium. After the fermentation is complete the medium is inoculated with fungi spores and the cultures developed until the medium is neutralized the process being hastened by the addition of ammonia salts. The resultant product is maintained at 25-35 C. and the hides suspended therein the medium being constantly aerated by pumping air through it or by adding oxygenated water. The skins may be finally treated with enzymes e.g. papain and bromeline.
Patent GB-1086242-A (GB)
Title: Digital reference voltage device
IPC: H03M1/00
Filed: 1965-01-20
Abstract: 1,086,242. Automatic acceleration control. ALLMANNA SVENSKA ELEKTRISKA A. B. Jan.20, 1965 [Jan.21, 1964], No.2434/65. Heading G3R. [Also in Division G4] A pulse transmitter (18) coupled to a motor supplies pulses to a counter (23) through a variable scaling circuit (19) and a digital-to-analogue converter (34) produces a control voltage for the motor which varies non-linearly with the angular rotation of the motor output shaft. As the motor accelerates from rest, pulses are supplied directly to counter 23 through a gate (29). When eight such pulses have been counted, counter (23) receives every second pulse through a gate (28) and via a flip-flop (22). In like manner, at successive counts of 16 and 24, counter (23) receives every fourth and sixth pulse respectively (feedback between flip-flop (21, 22) reducing the maximum reduction ratio from eight to six). Transmitter (18) may be a photo-electrically sensed slotted or apertured disc. Deceleration control is similar, counter (23) being controlled to count down and gates (27-29) being enabled in the reverse order.
Patent GB-742595-A (GB)
Title: Improvements in or relating to machines of the rotating cylinder and knife type for cutting grass and other crops
IPC: A01D34/42
Filed: 1953-01-28
Abstract: 742,595. Lawn-mowers. SHANKS & SON, Ltd., A., and FITZPATRICK, G. G. M. Jan. 19, 1954 [Jan. 28, 1953], No. 2445/53. Class 6 (2). In a lawn-mower comprising a plurality of helically extending blades 19 mounted on a common spindle 11, resilient pads 30 are disposed between the blades 19 and supports 28 fixed to the spindle 11. Each blade is connected to its supports by bolts 29 provided with distance pieces 31, each blade moving axially on the distance pieces 31 within limits determined by the resilience of the pads 30. As shown in Fig. 1, the cutters are carried on a frame 13 hinged to an arm 15 extending from a tube 50 pivotally mounted by means of a pin 51 on a draw-bar 16 attached to a tractor. The frame 13 is provided with a wheel 17 and is attached by a cable 18 to the tractor. The cutters are driven from a motor 35 and the drive may incorporate change speed gearing. For transport purposes the frame 13 may be swung rearwardly through 180 degrees. In a modification, the part of the bolt passing through the blade is formed as an eccentric to allow the blades to be adjusted radially.
Patent GB-914065-A (GB)
Title: Improvements in typewriting machines
IPC: B41J31/16
Filed: 1959-01-22
Abstract: 914,065. Typewriters &c. KNIGHT, J. P. Jan. 22, 1959 [Jan. 31, 1958], No. 2482/59. Class 100 (4). A typewriter ink feeding device comprises an inking arm 11 having an ink-fed porous material tip 12 urged against a roller 4 which has a ribbon 2 held against the other side by direct contact of a leaf-spring 10. The arm 11 is pivotally mounted in a reservoir 25 in a holder 23 and is controlled by shifting means including a stirrup 26 engaging the arm 11. An exteriorly and internally screw-threaded member 29 engages in an outer shell 24 and has an internal rod secured to the stirrup 26. The screwthreads have different pitches so that an adjustment of the pressure of the tip 12 on the roller 4 can be effected by turning the member 29 and this balanced by the pressure of the spring 10 on the ribbon 2 ensures even distribution of the ink and even feed of the ribbon. The member 29 may be locked in position by a screwed nylon plug 31. The ribbon is preferably of tubular nylon. The roller 4 is supported at the bottom with multiple point contact on a ball-bearing and has an upper ball-bearing. It is shielded at the top and sealed at the bottom but is otherwise internally free. In a modification the leaf-spring 10 is replaced by a spring of circular cross-section.
Patent GB-1393631-A (GB)
Title: Photographic cameras
IPC: G03B7/24
Filed: 1973-01-17
Abstract: 1393631 Cameras MINOLTA CAMERA KK 17 Jan 1973 [31 Jan 1972] 2494/73 Heading G2A A camera has shutter opening and closing curtains 17, 17<SP>1</SP>, a battery-energized electromagnet M for holding the closing curtain until the end of the exposure period and levers 19 and 20 which detect movement of the two curtains and prevent further  operation of the camera if the curtains are released simultaneously due to battery failure. As shown, depression of a release button 1 operates linkage 2, 4, 5, 6, 7 which hinges mirror 18 up, releases a lever 8 from a plate 12 to allow an opening shaft 17a to rotate and move opening curtain 17, and energizes an electromagnet M which holds closing curtain 17<SP>1</SP>. When the electromagnet is deenergized by photo-electric RC circuit Fig.2 (not shown) it releases a lever 11 from a plate 13 to allow a closing shaft 17 a to rotate and move closing curtain 17<SP>1</SP>. When opening shaft 17a rotates, it moves a pin 39a which strikes lever 19 causing a lever 20 to be pivoted into the path of a pin 40a. Then when closing shaft 17'a rotates, it moves the pin 40a which strikes lever 20 causing linkage 21, 22, 25 to release a film wind and shutter cocking lock 26 and allow the camera to be cocked for the next exposure. If the battery fails, shafts 17a and 17'a are released together so pins 39a and 40a move together and lever 20 does not have time to move into the path of pin 40a. The film wind and shutter cocking lock 26 is then maintained until the battery chamber lid 24a is rotated to remove the battery, whereupon lid 24a strikes a lever 23 which, via linkage 22, 25, releases the lock 26. Instead of locking film wind and shutter cocking, camera operation can be prevented by blocking return of the shutter release button or of the reflex mirror or by blocking shutter release or by preventing focussing or diaphragm adjustment.
Patent GB-304699-A (GB)
Title: Improvements in apparatus for indicating the mean speed of a vehicle
IPC: G01P11/00
Filed: 1929-01-24
Abstract: 304,699. Pellerin, E., Hector, M., and Carpentier, P., J. Jan. 24, 1928, [Convention date]. Indicating apparatus.- Comprises logarithmic cam apparatus for indicating the algebraic sum of movements proportional to the logarithms of quantities such as time and distance. Figs. 4, 5 show diagrammatically a form of the device. The two logarithmic cams 1, 2 are mounted on screwed shafts 47, 37 and move along the shafts during rotation. The cam 2 is moved by a clockwork M through shaft 21, clutch 24, 25, shaft 22, clutch 30, 31, shaft 23, gears 32, 33, shaft 34, and gears 35, 36, the gear 35 being wide enough to accomodate the longitudinal movement of the cam. The mileage counter K drives the cam 1 through a shaft 38, pinions 42, 43 in a similar manner. A spring-pressed rod clutch 39, 40, shaft 41 and 7 transmits movement from the cam 2 to a sun wheel 9 of a differential gear, 8 - - 11, the cam 1 transmitting movement to the sun wheel 8 similarly. The spindle 12 of the carrier for the planet wheels 10, 11 transmits half the difference of the movements to a cam 15 which changes the movement back from the logarithm and transmits it through a spring rack 16 to a pinion 18 on the spindle of the pointer 19. The clutch members 30, 39 are keyed to their respective shafts and connected by a bar 49 which under the influence of springs 50, 51, 52 normally holds the clutches in engagement. When the cams end their stroke, one of them makes contact with one of the studs 57<2>, 59<2> and the corresponding rod 57 or 59 is displaced towards contact 58 or 60 to close the circuit of an electromagnet 53 which declutches both cams from their drives and allows the springs 1<1>, 2' to return them to the starting position. This breaks circuit at the contact 60 or 58 and de-energizes the magnet causing the springs 50, 52 to clutch in the drives again. The zero returns of the cams may be effected at any time by using the switch 55. The apparatus provides for the measurement of the mean speed with deduction of the time of stopping, and also the mean speed in which said time is included. To obtain the latter the switch 56 is left open, while to obtain the former, the driver closes the switch 56 and when the vehicle stops, the contact 61 closes the circuit of an electromagnet 29 which opens the clutch 24, 25 and disconnects the clockwork drive, a pawl 26<1> holding the shaft 21 and preventing a return to zero of the time cam. The Specification as open to inspection under Sect. 91 (3) (a) comprises the apparatus shown in Fig. 1 (Cancelled), in which the piston pl, p<2> working in a cylinder C full of liquid are moved by logarithmic spirals 1, 2 in accordance with distance and time respectively, and a third piston p<3> transmits the sum or difference through rack and pinion mechanism 17, 18 to a pointer moving over a scale 20 graduated to indicate speed; several pistons may be used representing factors required to be similarly treated. This subjectmatter does not appear in the Specification as accepted.
Patent GB-709424-A (GB)
Title: Improvements in means for separating the endmost member from a stack or bank of metal drop-pins for loom warp stop-motions
Inventor: OSBALDESTON JOSEPH
IPC: D03J1/14
Filed: 1951-02-02
Abstract: 709.424. Weaving. T.M.M. (RESEARCH). Ltd.. and TERRY, R. Jan. 22, 1952 (Feb. 2, 1951], No. 2639/51. Class 142(1) Feeding warp stop-motion detectors. A device for separating a warp stop-motion blade from a stack in which the blades are arranged with notches at alternately high and low levels, comprises a pair of retaining members alternately registering with the notches of the endmost blade of the stack so as to engage the next adjacent blade, a magnet initiating the separation of the end blade, and a knife having an abutment completing the removal of the blade from the stack. The stack of blades 13 is spring-urged towards the separating means. As shown, fingers on a retaining member 17 pass through the notches in the end blade and bear against the next blade. A magnet 23 flexes the end blade outwards to form a gap B through which a knife 26 can pass, the lower end of the blade being held by a plunger 24. As the knife descends plunger 24 is withdrawn from its retaining position and a projection 262 carried by the knife displaces the end blade into a receptacle. As the knife rises the pressure of the holding member 17 on the next blade is released and its lower end is retained by plunger 24, a holding member 18 registering with its notches. Knife 26 is connected by a system of levers to a bell-crank lever actuating the plunger 24, and is driven from a shaft 33. The holding members 17, 18 are actuated by cams 20, offset by 180 degrees. mounted on a shaft 21 connected by pinion and spur wheel gearing 40, 41 to a shaft 42 driven intermittently by the driving shaft 33 through a Geneva motion 43, 44. Reference has been directed by the Comptroller to Specifications 594,423 and 684,324.
Patent GB-774026-A (GB)
Title: Improvements in or relating to telecommunication submarine cables having repeaters installed at intervals
IPC: H04B3/36
Filed: 1955-01-28
Abstract: 774,026. Telephone transmission systems. SIEMENS & HALSKE AKT.-GES. Jan. 28, 1955 [Jan. 29, 1954], No. 2712/55. Class 40 (4). A submarine cable comprising transistor amplifier is specially constructed to withstand pressure. All holes or empty spaces in the transistor and its associated protective sleeve are exhausted and then filled with liquid insulating material of the type which subsequently solidifies. The transistor is then enclosed together with the other amplifier components in a non-pressureproof sleeve and the intervening space filled with liquid, semiliquid or highly viscous material. Alternatively the whole transistor circuit may be embedded in an insulating liquid which subsequently solidifies though remaining flexible. This may be done by spraying or dipping. Alternatively the transistor amplifier may be fitted into the sleeve which is then filled with the liquid insulator which subsequently sets. This is preferably performed in vacuo. The sleeves may comprise separate housings for the components or the housings may be dispensed with if the components are embedded in a non- hygroscopic insulating mass. The sleeves containing the amplifiers may be included in the middle of relatively short cable sections. These are tested physically and the gain/frequency characteristics of the amplifiers then measured. During the laying of the cable these may then be selected for insertion in accordance with the characteristics of the cable being laid. In the case of a coaxial cable the outer conductor thereof may extend over the repeater. If the outer conductor is stranded one or more of the strands may then be passed through the sleeve to make connection with the repeater.
Patent GB-371472-A (GB)
Title: Improvements in or relating to mail chutes
IPC: B65G11/04
Filed: 1931-01-28
Abstract: 371,472. Shoots. CUTLER MAIL CHUTE CO., 42, East Avenue, Rochester, New York.-(Assignees of Cutler, J. W. ; 94, Merriman Street, Rochester, New York, U.S.A.) Jan. 28, 1931, No. 2783. [Class 78 (i).] In a shoot used in tall buildings for conveying letters from any floor to a receptacle at the ground floor, each main section 3, 4 has a displaceable and replaceable panel 5 which rests on a separate detachable sill piece of the base through which a floor section, supported on and within the base beneath the main shoot section and secured by the corresponding sill piece, is removable when the sill piece is removed. The shoot is mounted on vertical angle-irons 10, Fig. 3, secured to the wall 11, and a central vertical stud 12 which is connected to the angle-irons by cross-bars 13. Each section 3, 4 is a sheet-metal channel which is strengthened at the back by cross-bars 15, and is bent at the sides to form inwardly projecting shoulders 16 which form stops for the panels 5. Each panel 5 comprises mouldings 18 holding glass plates 19, and is held in place by a swinging locking bar 8. Between a floor and the ceiling below is provided a floor section comprising a short tapered tube 20 of rectangular cross section, the upper edge of which is flush with the walls of a section 3, 4, and the lower end of which extends into the ceiling piece 2 below where it telescopes with an intermediate sleeve 21. A collar 27 at the top of the tube 20 rests on supporting lugs 25 at the sides of the crown moulding 22 of the base casting 1, and on a centre rail 26. The tube 20 normally is held down by a sill plate 28, Fig. 8, which is screwed to the base 1. Upper panels 17, which are preferably removable, rest on the lower panels 5 and are interlocked within the ceiling casting 2. The adjacent free edges of the sections 3, 4 are held together by the means described in Specification 364,527.
Patent GB-1104543-A (GB)
Title: Improvements in sliding doors, windows, partitions or the like
IPC: E06B3/46
Filed: 1964-01-22
Abstract: 1,104,543. Sliding doors; windows &c. H. G. WYNN. 21, April, 1965 [22, Jan., 1964], No. 2789/64. Heading E1J. In a sliding door &c. in which the leaf 1 is supported at its bottom edge by rollers and guided by transverse arms 15 of a vertical plate mounting the rollers, the arms 15 moving in restricted neck track channels 21 let into the floor and curved at the ends adjacent the opposite sides of the door frame to guide the door leaf into a flush position in the frame, and the leaf is provided with a channel 23 in its upper edge in which runs a projecting pin 27 from an arm 29 pivoted at 31 to the lintel of the frame, the arm being spring biased by a spring 45, so as, in the open position of the door to urge the door towards the wall to maintain it in an upright position. As the door is closed the arm 29 swings around and is accommodated in the gap between door frame or in a recess 51 formed in the lintel. stops 55 in the lower tracks define a desired open position of the door. The runner rollers (Figs. 4 and 5) have lateral parts of reduced diameter running on the reduced neck portion of the channel with the larger diameter portion running between the two lateral portions of the reduced neck and are adjustably mounted by screw means (20), in the bottom edge of the door.
Patent GB-394607-A (GB)
Title: Improvements relating to drip and moisture collectors for roofing members
IPC: E04D13/04
Filed: 1933-01-30
Abstract: 394,607. Roofing; glazing. HEAD, L. F. N., Old White Horse, High Street, Shipdham, Thetford, Norfolk. Jan. 30, 1933, No. 2813. [Classes 20 (iii) and 20 (iv).] Means for securing slates or sheets of glass, asbestos, or the like to rafters, glazing bars and like members comprises a metal casing A, Fig. 1, adapted to fit over the top of the rafter or like member, as shown in Fig. 3, and formed with an integral upstanding portion A<1> extending centrally and longitudinally thereof, together with a small channel A<2> extending along each longitudinal edge of the casing, the roofing material being positioned on each side of the upstanding portion and secured by means of square-headed screws C which pass through a metal capping B, Fig. 2, lined on its underside with a prepared adhesive felt B<1>. The lowermost capping on the roof is provided at its lower end with two clips B<2> for preventing the roofing material from slipping. A strip of felt may be arranged on the casing to form a bed for the roofing material.
Patent GB-811270-A (GB)
Title: Improved fluid sealing device
Inventor: BRYSON ROY EDGAR
IPC: F16J15/40
Filed: 1958-01-28
Abstract: 811,270. Stuffing-box substitutes. ALLISCHALMERS MANUFACTURING CO. Jan. 28, 1958, No. 2857/58. Class 122 (5). A fluid sealing device between a rotatable shaft 1 and its housing 3 comprises rings 14, 18 which are mounted within an annular pressure chamber 8 in the housing in sealing relationship therewith so as to constrict the flow of pressurized fluid supplied to the chamber along the shaft to a discharge outlet 33 having restricted passages 32 to control the rate of discharge. As shown, applied to a pump for pumping abrasive material such as sand, the discharge outlet 33 is constituted by the co-operation of the tapered periphery 34 of a flange 6 on a wear sleeve 5 on the shaft 1 with a ring 12 of Z-section bonded to the outer end of a rubber sleeve 10 which at its inner end is carried by a flange on the ring 14; the flange 6 may be formed directly on the shaft. The inner surface of the flange 6 co-operates with the adjacent surface of a thrust-bearing ring 13 which is pressed into the ring 12 and either of these surfaces may be formed with curved or radial grooves 32 leading uo the outlet 33. The ring 13 may be of fabric-based synthetic resin material. The rings 14, 18 are provided with recesses forming an annular fluid inlet chamber 19, and are clamped with resilient sealing rings 17, 29 against a shoulder 9 by a gland nut 31 acting against a ring 27. In operation, fluid such as water, is pumped or otherwise fed through an inlet passage 20 into the chamber 19 and thence through a number of circumferentially-spaced holes 23 into a restricted passage 50 surrounding the wear sleeve 5 to be finally discharged through the grooves 32, nozzle 33 and a gap 36 between the ring 12 and impeller 2. A seal 25 is provided to prevent escape of the working fluid outwardly along the shaft and, to prevent abrasive action on the shaft at the point where it connects with the impeller, the latter is coated with rubber and the outer surface of the flange 6 is urged into sealing contact therewith by a nut 7. The fluid is used for lubricating and cooling as well as for sealing.
Patent GB-636576-A (GB)
Title: Improvements relating to automatic packing machines
IPC: B65B37/08
Filed: 1948-02-02
Abstract: 636,576. Filling-nozzles. SOUTHALL & SMITH, Ltd., and CHESHIRE, F. Feb. 2, 1948, No. 2966. [Class 94(i)] [Also in Group XXX] In a packing machine in which granular &c. materials are fed from a hopper to a bag, carton or other receptacle through a rotary nozzle b associated with an agitator c, Fig. 1 (not shown), extending into the lower part of the hopper, an adjustable, intermittent, rotary movement is imparted to the nozzle by means such as a ratchet wheel g which is coupled to the nozzle by bevel gearing and driven by a spring-loaded pawl i carried by a lever h having its fulcrum on the wheel axis, this lever being coupled by a link k to a variable throw crank driven by a pulley m and formed by a disc n having a diametral groove or slot in which a bar p to which the link is connected may be adjustably secured by a screw o.
Patent GB-471306-A (GB)
Title: Improvements in and relating to thermionic valve circuits
IPC: H01J21/20
Filed: 1936-01-31
Abstract: 471,306. Valve circuits for wireless reception; thermionic valves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 31, 1936, No. 3050. Convention date, Jan. 31, 1935. [Classes 39 (i) and 40 (v)] In a mixing-valve comprising in order a cathode, a control grid, an anode, a screen, a further control electrode, and an output anode, means are provided for balancing the influence of the mutual conductance between the outer control electrode and the inner anode. The Figure shows a frequency-changing valve circuit for superheterodyne receivers. The first grid 13 and the grid-anode 15 are back-coupled to produce local oscillations in the circuit 25. The signal-oscillations from the tuned input circuit 21, together with volume control bias 39 are applied to the grid 11 which lies between screening grids 17. The beat oscillations are taken from a circuit 23 connected to the output anode 9. The invention consists in providing a further anode 51, which may be connected directly to the anode 15, lying between the screen 17 and the output anode 9. Any variation in current to the anode 15 at the frequency of the input signal from 21 is balanced out by an opposite variation in current to the further anode 51. Anode 15 therefore does not vary in voltage at the signal input frequency and even when the signal frequency is very high any stray capacity between electrodes 11 and 15 does not give rise to feed-back to the signal input circuit 21. In a modification, Fig. 2 (not shown), the anodes 15 and 51 are both in the form of one or more rods or plates.