US2107988A - Impulse transmitter - Google Patents

Impulse transmitter Download PDF

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Publication number
US2107988A
US2107988A US42406A US4240635A US2107988A US 2107988 A US2107988 A US 2107988A US 42406 A US42406 A US 42406A US 4240635 A US4240635 A US 4240635A US 2107988 A US2107988 A US 2107988A
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US
United States
Prior art keywords
impulses
cam
code
moving
members
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US42406A
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English (en)
Inventor
Kardorff Leon
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Inventor Trust S A
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Inventor Trust S A
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Filing date
Publication date
Application filed by Inventor Trust S A filed Critical Inventor Trust S A
Application granted granted Critical
Publication of US2107988A publication Critical patent/US2107988A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc

Definitions

  • This invention relates to an impulse transmitting device to be used more particularly in the automatic telephone systems and comprising means permitting to send out groups of predetermined impulses.
  • the members which emit the impulses and those which effect the short-circuits must operate in perfect agreement with each other.
  • one revolution of the code controller disc corresponds to about a hundred revolutions of the transmitting member, the code controller discs should be made with great precision, and this can be obtained with difliculty only in the practice; their manufacture and more particularly their fitting makes them very costly and fragile.
  • the present invention does away with the above drawbacks and allows of obtaining a device for transmitting impulses which has smaller dimensions, whilst reducing to a large extent the precision required in the manufacture.
  • the apparatus for transmitting impulses according to the present invention is characterized in that the formation of the impulses, transmitted by any suitable device, isinfluenced by a movable member having a profile or outline, the motion of the movable member being such that after a profile has acted to form a series of impulses, the movable member is placed again in a position similar to that at the beginning, for the formation of a new series of impulses.
  • the moving member' is constructed so as to have a profile consisting of one shape or of several identical shapes, the length of each shape being such as to correspond for a given speed to the duration of ten impulses followed by a certain period of rest.
  • the profile of the moving member is such that its portion which coincides with the transmission of ten impulses, has its various points progressively displaced relatively to each other.
  • the moving member has no influence upon the transmission of impulses except on a portion of its profile and this portion may vary.
  • the length of this portion is determined-by the position of a. feeler which cooperates with a code member.
  • Use is made preferably as a moving member of a rotating member effecting a complete revolution for each of the digits of the number which is to be formed.
  • a moving member having a profile consisting of several identical shapes, of which one complete shape is used for each digit which is to be formed. In this case the moving member will effect for each digit a fraction only of a revolution.
  • the moving member may be a cylinder, or a cam, etc. It may form an element independent of the make and break device acting upon the contacts of impulses or it may act itself as a make and break device.
  • An alternating motion or an oscillating motion may be imparted to the feeler.
  • the latter is displaced towards the code members which may be either parts of a circle or sectors, or rectilineal toothed members or cam members and may act along their height and not along their length, as was hitherto the case.
  • the code members may be arranged on a plate or on a ring or they may be distributed in groups upon several fittings. The latter may be fixed or they may be displaced by saccades underneath the feeler.
  • Figs. 1 to 4 relate to an impulse transmitter for predetermined calls.
  • Figure 1 is a horizontal section made along the axis of an impulse transmitter comprising a rotating member having the shape of a cylinder and acting also as a make and break device with contacts of impulses.
  • Figure 2 is a vertical section made along the line X-X of Figure 1.
  • Figure 3 is a development of the rotating cylinder.
  • Figure 4 is a section along the plane Z-Z of Figure 3.
  • Figure 5 shows movable member having a profile with two identical shapes.
  • Figures 1 to 4 show an impulse transmitter in which the movable member consists of a rotating cylinder acting as a make and break device coacting with contacts of impulses.
  • the said movable member effects a complete revolution for each figure of the number to be formed.
  • the apparatus comprises a cylinder I adapted to rotate around its axis and on which are placed the names corresponding to predetermined numhers of telephone calls.
  • the cylinder l rotates between a rear plate 2 and a front plate 3, the latter being provided with a pointer 4 opposite which may be brought any of the names marked along the generating lines of the cylinder I.
  • a shaft 5 which carries toothed wheels 6 and 1 which gear respectively with other toothed wheels 8 and 9, the wheel 8 being secured upon an intermediary shaft l whilst the wheel 8 is integral with a sleeve H capable of rotating freely around the shaft ID.
  • the wheel 8 is integral with a ratchet wheel l2 coacting with a pawl l3 which is integral with a box l4 containing a spring l5 secured on the one hand to the box and on the other hand to the shaft l0.
  • a, handle [6 adapted to place the spring l5 under tension.
  • the sleeve 1 l adapted to rotate freely around the shaft [0 is integral with a toothed wheel I! gearing with another toothed wheel I 8 mounted at the end of a sleeve l9 adapted to rotate freely around the shaft 5 and integral with a movable member having the shape of a cylinder and provided at its periphery with ten teeth 2
  • a portion 23 without teeth connects the tenth tooth to the first tooth.
  • the cylinder 20 comprises also a path 25 having a certain number of horizontal portions 2 connected with each other by means of inclined planes 21 (Fig. 3).
  • the path 25 acts as a guide to an arm 28 carried by a member 29 adapted to slide along an axis 30 secured to the rear plate 2.
  • the member 29 is connected by means of arms 3
  • the member 29 and the sliding block 32 are subjected to the action of springs 34 and 35.
  • are adapted to slide two supporting members 36 made integral with one another by means of a connecting piece 31 engaging between the arms ll of a double fork 22 (see Fig. 2) of which the other end is provided with arms 40 coacting with a projection 41 integral with a sleeve 42 mounted on a fixed shaft 43.
  • are capable of an angular displacement around the shaft 41, due to the action of an arm 44, the end 45 of which bears against a cam 48 mounted on the shaft 5.
  • the said cam has a certain number of straight portions 41 connected with each other by means of inclined planes 48.
  • One of the supporting members 24 carries a feeler 49 coacting with code members I having the shape of toothed blades arranged around the movable member 2
  • ] are maintained inside supports 8
  • Impulse contacts 52 and 53 are mounted on a support 54 (Fig. 2) which is integral with the member 29.
  • the device is completed by a speed regulator and by starting and stopping means, not shown in the drawings.
  • the apparatus works as follows:
  • the toothed wheel 1 causes a rotation of the cylinder 20 which may be made of an insulating material, through the intermediary of the toothed wheels 9, l1 and II.
  • the rotation of the cylinder or movable member 20 has for its effect to free the arm 28 which at rest is situated upon the highest portion of the path 25.
  • the feeler 49 rests against the first tooth of the code-member chosen.
  • the height of the teeth of the code members 50 is such that the feeler 49 allows the impulse contacts 52 and 53 to be influenced only by a given number of teeth of the movable member 20 corresponding to the number whichis to be formed.
  • the arm 26 rests upon the path 25 and follows the horizontal portions 28 and the inclined portions 21 of the path until it is brought back to the starting position.
  • the cam 46 Whilst the movable member 20 has eflected a complete revolution, the cam 46 has been displaced through a fraction of a revolution only. The end 45 of the arm 44 has followed the horizontal portion 41 and the inclined plane 48 and is brought to the next horizontal portion. The displacement of the arm 44 acts through the projection 4
  • An impulse transmitter comprising in combination a cam-like member of invariable profile moving continuously and in such a manner that its position is analogous for the same digit of each group of impulses, means coacting with the cam-like member for producing impulses, codemembers corresponding to a given number of groups of impulses, and a feeler moving with an alternating motion imparted by the cam-like member and having a stroke which is limited by the code-member so as to vary the number of impulses of each group, as set forth.
  • An impulse transmitter comprising in combination a. cam-like member of spiral-shaped profile mo ng continuously and in such a manner that its position is analogous for the same digit of each group of impulses, means coacting with the cam-like member for producing impulses, code-members corresponding to a given number of groups of impulses, and a ieeler moving with an alternating motion imparted by the cam-like member and having a stroke which is limited by the code-member so as to vary the number of impulses of each group, as set forth.
  • An impulse transmitter comprising in combination a cam-like member of cylindrical shape the side surface of which is cut in a stepped way approximately along a helix, moving continuously and in such a manner that its position is analogous for the same digit of each group 0 impulses, means coacting with the cam-like member for producing impulses, code-members corresponding to a given number of groups of impulses. and a feeler moving with an alternating motion imparted by the cam-like member and having a stroke which is limited by the codemember so as to vary the number of impulses of each "group, as set forth.
  • An impulse transmitter comprising. in combination a cam-like member having an invariable profile with teeth, said cam-like member moving continuously and in such a manner that its position is analogous for the same digit of each group of impulses, contacts acted upon by the said teeth for producing impulses, code-members corresponding to a given number of groups of impulses, and a feeler moving with an alternating motion imparted by the cam-like member and having a stroke which is limited by the codemember so as to vary the number of impulses of each group, as set forth.
  • An impulse transmitter comprising in combination a cam-like member of invariable profile moving continuously and in such a manner that its position is analogous for the same digit of each group of impulses, means coacting with the cam-like member for producing impulses, codemembers arranged around the same axis as the cam-like member, said code-members corresponding to a given number of groups of impulses and a feeler moving with an alternating motion imparted by the cam-like member and having a stroke which is limited by the code-member so as to vary the number of impulses of each group, as set forth.
  • An impulse transmitter comprising in combination a cam-like member of invariable profile moving continuously and in such a manner that its position is analogous for the same digit of each group of impulses, means coacting with the cam-like member for producing impulses, code-members corresponding to a given number of groups of impulses, a feeler moving with an alternating motion imparted by the cam-like member and having a stroke which is limited by the code-member so as to vary the number of impulses of each group, and means for varying the number of rotations of the cam-like member, as set forth.
  • An impulse transmitter comprising in combination a rotating cylinder with a name index marked on its outer surface and containing a cam-like member of invariable profile moving continuously and in such a manner that its position is analogous for the same digit of each group of impulses, means coacting with the camlike member for producing impulses, code-members driven by the said rotating cylinder and corresponding to a given number of groups of impulses, and a feeler moving with an alternating motion imparted by the cam -like member and having a stroke which is limited by the codemember so as to vary the number of impulses of each group, as set forth.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Toys (AREA)
US42406A 1934-10-12 1935-09-27 Impulse transmitter Expired - Lifetime US2107988A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR667272X 1934-10-12

Publications (1)

Publication Number Publication Date
US2107988A true US2107988A (en) 1938-02-08

Family

ID=9014297

Family Applications (1)

Application Number Title Priority Date Filing Date
US42406A Expired - Lifetime US2107988A (en) 1934-10-12 1935-09-27 Impulse transmitter

Country Status (6)

Country Link
US (1) US2107988A (xx)
BE (1) BE411549A (xx)
DE (1) DE667272C (xx)
FR (1) FR792788A (xx)
GB (1) GB459732A (xx)
NL (1) NL46566C (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2596245A (en) * 1948-01-09 1952-05-13 Ericsson Telefon Ab L M Signal sending device within automatic telephone system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE953178C (de) * 1952-10-24 1956-11-29 Standard Elek K Ag Kontaktfedersatz mit Impulsgeberring
NL246748A (xx) * 1959-01-14
FI128999B (en) * 2019-09-26 2021-04-30 Planmeca Oy CARE CHAIR HEAD RESTRAINT ADJUSTMENT MECHANISM

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2596245A (en) * 1948-01-09 1952-05-13 Ericsson Telefon Ab L M Signal sending device within automatic telephone system

Also Published As

Publication number Publication date
BE411549A (xx)
NL46566C (xx)
GB459732A (en) 1937-01-14
FR792788A (fr) 1936-01-10
DE667272C (de) 1938-11-09

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